---
_id: '10725'
abstract:
- lang: eng
text: Bilayer graphene with ~ 1.1 degrees twist mismatch between the layers hosts
a low energy flat band in which the Coulomb interaction is large relative to the
bandwidth, promoting correlated insulating states at half band filling, and superconducting
(SC) phases with dome-like structure neighboring correlated insulating states.
Here we show measurements of a dual-graphite-gated twisted bilayer graphene device,
which minimizes charge inhomogeneity. We observe new correlated phases, including
for the first time a SC pocket near half-filling of the electron-doped band and
resistive states at quarter-filling of both bands that emerge in a magnetic field.
Changing the layer polarization with vertical electric field reveals an unexpected
competition between SC and correlated insulator phases, which we interpret to
result from differences in disorder of each graphene layer and underscores the
spatial inhomogeneity like twist angle as a significant source of disorder in
these devices [1].
alternative_title:
- Bulletin of the American Physical Society
article_number: R14.00004
article_processing_charge: No
author:
- first_name: Shaowen
full_name: Chen, Shaowen
last_name: Chen
- first_name: Matthew
full_name: Yankowitz, Matthew
last_name: Yankowitz
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: Kenji
full_name: Watanabe, Kenji
last_name: Watanabe
- first_name: Takashi
full_name: Taniguchi, Takashi
last_name: Taniguchi
- first_name: David E.
full_name: Graf, David E.
last_name: Graf
- first_name: Andrea
full_name: Young, Andrea
last_name: Young
- first_name: Cory R.
full_name: Dean, Cory R.
last_name: Dean
citation:
ama: 'Chen S, Yankowitz M, Polshyn H, et al. Correlated insulating and superconducting
phases in twisted bilayer graphene. In: APS March Meeting 2019. Vol 64.
American Physical Society; 2019.'
apa: 'Chen, S., Yankowitz, M., Polshyn, H., Watanabe, K., Taniguchi, T., Graf, D.
E., … Dean, C. R. (2019). Correlated insulating and superconducting phases in
twisted bilayer graphene. In APS March Meeting 2019 (Vol. 64). Boston,
MA, United States: American Physical Society.'
chicago: Chen, Shaowen, Matthew Yankowitz, Hryhoriy Polshyn, Kenji Watanabe, Takashi
Taniguchi, David E. Graf, Andrea Young, and Cory R. Dean. “Correlated Insulating
and Superconducting Phases in Twisted Bilayer Graphene.” In APS March Meeting
2019, Vol. 64. American Physical Society, 2019.
ieee: S. Chen et al., “Correlated insulating and superconducting phases in
twisted bilayer graphene,” in APS March Meeting 2019, Boston, MA, United
States, 2019, vol. 64, no. 2.
ista: 'Chen S, Yankowitz M, Polshyn H, Watanabe K, Taniguchi T, Graf DE, Young A,
Dean CR. 2019. Correlated insulating and superconducting phases in twisted bilayer
graphene. APS March Meeting 2019. APS: American Physical Society, Bulletin of
the American Physical Society, vol. 64, R14.00004.'
mla: Chen, Shaowen, et al. “Correlated Insulating and Superconducting Phases in
Twisted Bilayer Graphene.” APS March Meeting 2019, vol. 64, no. 2, R14.00004,
American Physical Society, 2019.
short: S. Chen, M. Yankowitz, H. Polshyn, K. Watanabe, T. Taniguchi, D.E. Graf,
A. Young, C.R. Dean, in:, APS March Meeting 2019, American Physical Society, 2019.
conference:
end_date: 2019-03-08
location: Boston, MA, United States
name: 'APS: American Physical Society'
start_date: 2019-03-04
date_created: 2022-02-04T13:48:04Z
date_published: 2019-03-01T00:00:00Z
date_updated: 2022-02-08T10:24:13Z
day: '01'
extern: '1'
intvolume: ' 64'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://meetings.aps.org/Meeting/MAR19/Session/R14.4
month: '03'
oa: 1
oa_version: Published Version
publication: APS March Meeting 2019
publication_identifier:
issn:
- 0003-0503
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- relation: used_in_publication
url: https://arxiv.org/abs/1808.07865
status: public
title: Correlated insulating and superconducting phases in twisted bilayer graphene
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 64
year: '2019'
...
---
_id: '10723'
abstract:
- lang: eng
text: In monolayer graphene, the interplay of electronic correlations with the internal
spin- and valley- degrees of freedom leads to a complex phase diagram of isospin
symmetry breaking at high magnetic fields. Recently, Wei et al. (Science (2018))
demonstrated that spin waves can be electrically generated and detected in graphene
heterojunctions, allowing direct experiment access to the spin degree of freedom.
Here, we apply this technique to high quality graphite-gated graphene devices
showing robust fractional quantum Hall phases and isospin phase transitions. We
use an edgeless Corbino geometry to eliminate the contributions of edge states
to the spin-wave mediated nonlocal voltage, allowing unambiguous identification
of spin wave transport signatures. Our data reveal two phases within the ν = 1
plateau. For exactly ν=1, charge is localized but spin waves propagate freely
while small carrier doping completely quenches the low-energy spin-wave transport,
even as those charges remain localized. We identify this new phase as a spin textured
electron solid. We also find that spin-wave transport is modulated by phase transitions
in the valley order that preserve spin polarization, suggesting that this technique
is sensitive to both spin and valley order.
article_number: P01.00004
article_processing_charge: No
author:
- first_name: Haoxin
full_name: Zhou, Haoxin
last_name: Zhou
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: Takashi
full_name: Tanaguchi, Takashi
last_name: Tanaguchi
- first_name: Kenji
full_name: Watanabe, Kenji
last_name: Watanabe
- first_name: Andrea
full_name: Young, Andrea
last_name: Young
citation:
ama: 'Zhou H, Polshyn H, Tanaguchi T, Watanabe K, Young A. Spin wave transport through
electron solids and fractional quantum Hall liquids in graphene. In: APS March
Meeting 2019. Vol 64. American Physical Society; 2019.'
apa: 'Zhou, H., Polshyn, H., Tanaguchi, T., Watanabe, K., & Young, A. (2019).
Spin wave transport through electron solids and fractional quantum Hall liquids
in graphene. In APS March Meeting 2019 (Vol. 64). Boston, MA, United States:
American Physical Society.'
chicago: Zhou, Haoxin, Hryhoriy Polshyn, Takashi Tanaguchi, Kenji Watanabe, and
Andrea Young. “Spin Wave Transport through Electron Solids and Fractional Quantum
Hall Liquids in Graphene.” In APS March Meeting 2019, Vol. 64. American
Physical Society, 2019.
ieee: H. Zhou, H. Polshyn, T. Tanaguchi, K. Watanabe, and A. Young, “Spin wave transport
through electron solids and fractional quantum Hall liquids in graphene,” in APS
March Meeting 2019, Boston, MA, United States, 2019, vol. 64, no. 2.
ista: 'Zhou H, Polshyn H, Tanaguchi T, Watanabe K, Young A. 2019. Spin wave transport
through electron solids and fractional quantum Hall liquids in graphene. APS March
Meeting 2019. APS: American Physical Society vol. 64, P01.00004.'
mla: Zhou, Haoxin, et al. “Spin Wave Transport through Electron Solids and Fractional
Quantum Hall Liquids in Graphene.” APS March Meeting 2019, vol. 64, no.
2, P01.00004, American Physical Society, 2019.
short: H. Zhou, H. Polshyn, T. Tanaguchi, K. Watanabe, A. Young, in:, APS March
Meeting 2019, American Physical Society, 2019.
conference:
end_date: 2019-03-08
location: Boston, MA, United States
name: 'APS: American Physical Society'
start_date: 2019-03-04
date_created: 2022-02-04T12:14:02Z
date_published: 2019-03-01T00:00:00Z
date_updated: 2022-02-04T13:59:47Z
day: '01'
extern: '1'
intvolume: ' 64'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://meetings.aps.org/Meeting/MAR19/Session/P01.4
month: '03'
oa: 1
oa_version: Published Version
publication: APS March Meeting 2019
publication_identifier:
issn:
- 0003-0503
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Spin wave transport through electron solids and fractional quantum Hall liquids
in graphene
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 64
year: '2019'
...
---
_id: '10877'
abstract:
- lang: eng
text: 'This report presents the results of a friendly competition for formal verification
of continuous and hybrid systems with piecewise constant dynamics. The friendly
competition took place as part of the workshop Applied Verification for Continuous
and Hybrid Systems (ARCH) in 2019. In this third edition, six tools have been
applied to solve five different benchmark problems in the category for piecewise
constant dynamics: BACH, Lyse, Hy- COMP, PHAVer/SX, PHAVerLite, and VeriSiMPL.
Compared to last year, a new tool has participated (HyCOMP) and PHAVerLite has
replaced PHAVer-lite. The result is a snap- shot of the current landscape of tools
and the types of benchmarks they are particularly suited for. Due to the diversity
of problems, we are not ranking tools, yet the presented results probably provide
the most complete assessment of tools for the safety verification of continuous
and hybrid systems with piecewise constant dynamics up to this date.'
acknowledgement: "The authors gratefully acknowledge \fnancial support by the European
Commission project\r\nUnCoVerCPS under grant number 643921. Lei Bu is supported
by the National Natural Science\r\nFoundation of China (No.61572249)."
alternative_title:
- EPiC Series in Computing
article_processing_charge: No
author:
- first_name: Goran
full_name: Frehse, Goran
last_name: Frehse
- first_name: Alessandro
full_name: Abate, Alessandro
last_name: Abate
- first_name: Dieky
full_name: Adzkiya, Dieky
last_name: Adzkiya
- first_name: Anna
full_name: Becchi, Anna
last_name: Becchi
- first_name: Lei
full_name: Bu, Lei
last_name: Bu
- first_name: Alessandro
full_name: Cimatti, Alessandro
last_name: Cimatti
- first_name: Mirco
full_name: Giacobbe, Mirco
id: 3444EA5E-F248-11E8-B48F-1D18A9856A87
last_name: Giacobbe
orcid: 0000-0001-8180-0904
- first_name: Alberto
full_name: Griggio, Alberto
last_name: Griggio
- first_name: Sergio
full_name: Mover, Sergio
last_name: Mover
- first_name: Muhammad Syifa'ul
full_name: Mufid, Muhammad Syifa'ul
last_name: Mufid
- first_name: Idriss
full_name: Riouak, Idriss
last_name: Riouak
- first_name: Stefano
full_name: Tonetta, Stefano
last_name: Tonetta
- first_name: Enea
full_name: Zaffanella, Enea
last_name: Zaffanella
citation:
ama: 'Frehse G, Abate A, Adzkiya D, et al. ARCH-COMP19 Category Report: Hybrid systems
with piecewise constant dynamics. In: Frehse G, Althoff M, eds. ARCH19. 6th
International Workshop on Applied Verification of Continuous and Hybrid Systems.
Vol 61. EasyChair; 2019:1-13. doi:10.29007/rjwn'
apa: 'Frehse, G., Abate, A., Adzkiya, D., Becchi, A., Bu, L., Cimatti, A., … Zaffanella,
E. (2019). ARCH-COMP19 Category Report: Hybrid systems with piecewise constant
dynamics. In G. Frehse & M. Althoff (Eds.), ARCH19. 6th International Workshop
on Applied Verification of Continuous and Hybrid Systems (Vol. 61, pp. 1–13).
Montreal, Canada: EasyChair. https://doi.org/10.29007/rjwn'
chicago: 'Frehse, Goran, Alessandro Abate, Dieky Adzkiya, Anna Becchi, Lei Bu, Alessandro
Cimatti, Mirco Giacobbe, et al. “ARCH-COMP19 Category Report: Hybrid Systems with
Piecewise Constant Dynamics.” In ARCH19. 6th International Workshop on Applied
Verification of Continuous and Hybrid Systems, edited by Goran Frehse and
Matthias Althoff, 61:1–13. EasyChair, 2019. https://doi.org/10.29007/rjwn.'
ieee: 'G. Frehse et al., “ARCH-COMP19 Category Report: Hybrid systems with
piecewise constant dynamics,” in ARCH19. 6th International Workshop on Applied
Verification of Continuous and Hybrid Systems, Montreal, Canada, 2019, vol.
61, pp. 1–13.'
ista: 'Frehse G, Abate A, Adzkiya D, Becchi A, Bu L, Cimatti A, Giacobbe M, Griggio
A, Mover S, Mufid MS, Riouak I, Tonetta S, Zaffanella E. 2019. ARCH-COMP19 Category
Report: Hybrid systems with piecewise constant dynamics. ARCH19. 6th International
Workshop on Applied Verification of Continuous and Hybrid Systems. ARCH: International
Workshop on Applied Verification on Continuous and Hybrid Systems, EPiC Series
in Computing, vol. 61, 1–13.'
mla: 'Frehse, Goran, et al. “ARCH-COMP19 Category Report: Hybrid Systems with Piecewise
Constant Dynamics.” ARCH19. 6th International Workshop on Applied Verification
of Continuous and Hybrid Systems, edited by Goran Frehse and Matthias Althoff,
vol. 61, EasyChair, 2019, pp. 1–13, doi:10.29007/rjwn.'
short: G. Frehse, A. Abate, D. Adzkiya, A. Becchi, L. Bu, A. Cimatti, M. Giacobbe,
A. Griggio, S. Mover, M.S. Mufid, I. Riouak, S. Tonetta, E. Zaffanella, in:, G.
Frehse, M. Althoff (Eds.), ARCH19. 6th International Workshop on Applied Verification
of Continuous and Hybrid Systems, EasyChair, 2019, pp. 1–13.
conference:
end_date: 2019-04-15
location: Montreal, Canada
name: 'ARCH: International Workshop on Applied Verification on Continuous and Hybrid
Systems'
start_date: 2019-04-15
date_created: 2022-03-18T12:29:23Z
date_published: 2019-05-25T00:00:00Z
date_updated: 2022-05-17T07:09:47Z
day: '25'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.29007/rjwn
editor:
- first_name: Goran
full_name: Frehse, Goran
last_name: Frehse
- first_name: Matthias
full_name: Althoff, Matthias
last_name: Althoff
file:
- access_level: open_access
checksum: 4b92e333db7b4e2349501a804dfede69
content_type: application/pdf
creator: dernst
date_created: 2022-05-17T06:55:49Z
date_updated: 2022-05-17T06:55:49Z
file_id: '11391'
file_name: 2019_EPiCs_Frehse.pdf
file_size: 346415
relation: main_file
success: 1
file_date_updated: 2022-05-17T06:55:49Z
has_accepted_license: '1'
intvolume: ' 61'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: 1-13
publication: ARCH19. 6th International Workshop on Applied Verification of Continuous
and Hybrid Systems
publication_identifier:
issn:
- 2398-7340
publication_status: published
publisher: EasyChair
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'ARCH-COMP19 Category Report: Hybrid systems with piecewise constant dynamics'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 61
year: '2019'
...
---
_id: '11061'
abstract:
- lang: eng
text: Many adult tissues contain postmitotic cells as old as the host organism.
The only organelle that does not turn over in these cells is the nucleus, and
its maintenance represents a formidable challenge, as it harbors regulatory proteins
that persist throughout adulthood. Here we developed strategies to visualize two
classes of such long-lived proteins, histones and nucleoporins, to understand
the function of protein longevity in nuclear maintenance. Genome-wide mapping
of histones revealed specific enrichment of long-lived variants at silent gene
loci. Interestingly, nuclear pores are maintained by piecemeal replacement of
subunits, resulting in mosaic complexes composed of polypeptides with vastly different
ages. In contrast, nondividing quiescent cells remove old nuclear pores in an
ESCRT-dependent manner. Our findings reveal distinct molecular strategies of nuclear
maintenance, linking lifelong protein persistence to gene regulation and nuclear
integrity.
article_processing_charge: No
article_type: original
author:
- first_name: Brandon H.
full_name: Toyama, Brandon H.
last_name: Toyama
- first_name: Rafael
full_name: Arrojo e Drigo, Rafael
last_name: Arrojo e Drigo
- first_name: Varda
full_name: Lev-Ram, Varda
last_name: Lev-Ram
- first_name: Ranjan
full_name: Ramachandra, Ranjan
last_name: Ramachandra
- first_name: Thomas J.
full_name: Deerinck, Thomas J.
last_name: Deerinck
- first_name: Claude
full_name: Lechene, Claude
last_name: Lechene
- first_name: Mark H.
full_name: Ellisman, Mark H.
last_name: Ellisman
- first_name: Martin W
full_name: HETZER, Martin W
id: 86c0d31b-b4eb-11ec-ac5a-eae7b2e135ed
last_name: HETZER
orcid: 0000-0002-2111-992X
citation:
ama: Toyama BH, Arrojo e Drigo R, Lev-Ram V, et al. Visualization of long-lived
proteins reveals age mosaicism within nuclei of postmitotic cells. Journal
of Cell Biology. 2019;218(2):433-444. doi:10.1083/jcb.201809123
apa: Toyama, B. H., Arrojo e Drigo, R., Lev-Ram, V., Ramachandra, R., Deerinck,
T. J., Lechene, C., … Hetzer, M. (2019). Visualization of long-lived proteins
reveals age mosaicism within nuclei of postmitotic cells. Journal of Cell Biology.
Rockefeller University Press. https://doi.org/10.1083/jcb.201809123
chicago: Toyama, Brandon H., Rafael Arrojo e Drigo, Varda Lev-Ram, Ranjan Ramachandra,
Thomas J. Deerinck, Claude Lechene, Mark H. Ellisman, and Martin Hetzer. “Visualization
of Long-Lived Proteins Reveals Age Mosaicism within Nuclei of Postmitotic Cells.”
Journal of Cell Biology. Rockefeller University Press, 2019. https://doi.org/10.1083/jcb.201809123.
ieee: B. H. Toyama et al., “Visualization of long-lived proteins reveals
age mosaicism within nuclei of postmitotic cells,” Journal of Cell Biology,
vol. 218, no. 2. Rockefeller University Press, pp. 433–444, 2019.
ista: Toyama BH, Arrojo e Drigo R, Lev-Ram V, Ramachandra R, Deerinck TJ, Lechene
C, Ellisman MH, Hetzer M. 2019. Visualization of long-lived proteins reveals age
mosaicism within nuclei of postmitotic cells. Journal of Cell Biology. 218(2),
433–444.
mla: Toyama, Brandon H., et al. “Visualization of Long-Lived Proteins Reveals Age
Mosaicism within Nuclei of Postmitotic Cells.” Journal of Cell Biology,
vol. 218, no. 2, Rockefeller University Press, 2019, pp. 433–44, doi:10.1083/jcb.201809123.
short: B.H. Toyama, R. Arrojo e Drigo, V. Lev-Ram, R. Ramachandra, T.J. Deerinck,
C. Lechene, M.H. Ellisman, M. Hetzer, Journal of Cell Biology 218 (2019) 433–444.
date_created: 2022-04-07T07:45:11Z
date_published: 2019-02-04T00:00:00Z
date_updated: 2022-07-18T08:31:52Z
day: '04'
ddc:
- '570'
doi: 10.1083/jcb.201809123
extern: '1'
external_id:
pmid:
- '30552100'
file:
- access_level: open_access
checksum: 7964ebbf833b0b35f9fba840eea9531d
content_type: application/pdf
creator: dernst
date_created: 2022-04-08T08:26:32Z
date_updated: 2022-04-08T08:26:32Z
file_id: '11139'
file_name: 2019_JCB_Toyama.pdf
file_size: 2503838
relation: main_file
success: 1
file_date_updated: 2022-04-08T08:26:32Z
has_accepted_license: '1'
intvolume: ' 218'
issue: '2'
keyword:
- Cell Biology
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/4.0/
month: '02'
oa: 1
oa_version: Published Version
page: 433-444
pmid: 1
publication: Journal of Cell Biology
publication_identifier:
eissn:
- 1540-8140
issn:
- 0021-9525
publication_status: published
publisher: Rockefeller University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Visualization of long-lived proteins reveals age mosaicism within nuclei of
postmitotic cells
tmp:
image: /images/cc_by_nc_sa.png
legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
BY-NC-SA 4.0)
short: CC BY-NC-SA (4.0)
type: journal_article
user_id: 72615eeb-f1f3-11ec-aa25-d4573ddc34fd
volume: 218
year: '2019'
...
---
_id: '11062'
abstract:
- lang: eng
text: Most neurons are not replaced during an animal’s lifetime. This nondividing
state is characterized by extreme longevity and age-dependent decline of key regulatory
proteins. To study the lifespans of cells and proteins in adult tissues, we combined
isotope labeling of mice with a hybrid imaging method (MIMS-EM). Using 15N mapping,
we show that liver and pancreas are composed of cells with vastly different ages,
many as old as the animal. Strikingly, we also found that a subset of fibroblasts
and endothelial cells, both known for their replicative potential, are characterized
by the absence of cell division during adulthood. In addition, we show that the
primary cilia of beta cells and neurons contains different structural regions
with vastly different lifespans. Based on these results, we propose that age mosaicism
across multiple scales is a fundamental principle of adult tissue, cell, and protein
complex organization.
article_processing_charge: No
article_type: original
author:
- first_name: Rafael
full_name: Arrojo e Drigo, Rafael
last_name: Arrojo e Drigo
- first_name: Varda
full_name: Lev-Ram, Varda
last_name: Lev-Ram
- first_name: Swati
full_name: Tyagi, Swati
last_name: Tyagi
- first_name: Ranjan
full_name: Ramachandra, Ranjan
last_name: Ramachandra
- first_name: Thomas
full_name: Deerinck, Thomas
last_name: Deerinck
- first_name: Eric
full_name: Bushong, Eric
last_name: Bushong
- first_name: Sebastien
full_name: Phan, Sebastien
last_name: Phan
- first_name: Victoria
full_name: Orphan, Victoria
last_name: Orphan
- first_name: Claude
full_name: Lechene, Claude
last_name: Lechene
- first_name: Mark H.
full_name: Ellisman, Mark H.
last_name: Ellisman
- first_name: Martin W
full_name: HETZER, Martin W
id: 86c0d31b-b4eb-11ec-ac5a-eae7b2e135ed
last_name: HETZER
orcid: 0000-0002-2111-992X
citation:
ama: Arrojo e Drigo R, Lev-Ram V, Tyagi S, et al. Age mosaicism across multiple
scales in adult tissues. Cell Metabolism. 2019;30(2):343-351.e3. doi:10.1016/j.cmet.2019.05.010
apa: Arrojo e Drigo, R., Lev-Ram, V., Tyagi, S., Ramachandra, R., Deerinck, T.,
Bushong, E., … Hetzer, M. (2019). Age mosaicism across multiple scales in adult
tissues. Cell Metabolism. Elsevier. https://doi.org/10.1016/j.cmet.2019.05.010
chicago: Arrojo e Drigo, Rafael, Varda Lev-Ram, Swati Tyagi, Ranjan Ramachandra,
Thomas Deerinck, Eric Bushong, Sebastien Phan, et al. “Age Mosaicism across Multiple
Scales in Adult Tissues.” Cell Metabolism. Elsevier, 2019. https://doi.org/10.1016/j.cmet.2019.05.010.
ieee: R. Arrojo e Drigo et al., “Age mosaicism across multiple scales in
adult tissues,” Cell Metabolism, vol. 30, no. 2. Elsevier, p. 343–351.e3,
2019.
ista: Arrojo e Drigo R, Lev-Ram V, Tyagi S, Ramachandra R, Deerinck T, Bushong E,
Phan S, Orphan V, Lechene C, Ellisman MH, Hetzer M. 2019. Age mosaicism across
multiple scales in adult tissues. Cell Metabolism. 30(2), 343–351.e3.
mla: Arrojo e Drigo, Rafael, et al. “Age Mosaicism across Multiple Scales in Adult
Tissues.” Cell Metabolism, vol. 30, no. 2, Elsevier, 2019, p. 343–351.e3,
doi:10.1016/j.cmet.2019.05.010.
short: R. Arrojo e Drigo, V. Lev-Ram, S. Tyagi, R. Ramachandra, T. Deerinck, E.
Bushong, S. Phan, V. Orphan, C. Lechene, M.H. Ellisman, M. Hetzer, Cell Metabolism
30 (2019) 343–351.e3.
date_created: 2022-04-07T07:45:21Z
date_published: 2019-08-06T00:00:00Z
date_updated: 2022-07-18T08:32:30Z
day: '06'
doi: 10.1016/j.cmet.2019.05.010
extern: '1'
external_id:
pmid:
- '31178361'
intvolume: ' 30'
issue: '2'
keyword:
- Cell Biology
- Molecular Biology
- Physiology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.cmet.2019.05.010
month: '08'
oa: 1
oa_version: Published Version
page: 343-351.e3
pmid: 1
publication: Cell Metabolism
publication_identifier:
issn:
- 1550-4131
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Age mosaicism across multiple scales in adult tissues
type: journal_article
user_id: 72615eeb-f1f3-11ec-aa25-d4573ddc34fd
volume: 30
year: '2019'
...
---
_id: '11059'
abstract:
- lang: eng
text: The genome is packaged and organized nonrandomly within the 3D space of the
nucleus to promote efficient gene expression and to faithfully maintain silencing
of heterochromatin. The genome is enclosed within the nucleus by the nuclear envelope
membrane, which contains a set of proteins that actively participate in chromatin
organization and gene regulation. Technological advances are providing views of
genome organization at unprecedented resolution and are beginning to reveal the
ways that cells co-opt the structures of the nuclear periphery for nuclear organization
and gene regulation. These genome regulatory roles of proteins of the nuclear
periphery have important influences on development, disease and ageing.
article_processing_charge: No
article_type: review
author:
- first_name: Abigail
full_name: Buchwalter, Abigail
last_name: Buchwalter
- first_name: Jeanae M.
full_name: Kaneshiro, Jeanae M.
last_name: Kaneshiro
- first_name: Martin W
full_name: HETZER, Martin W
id: 86c0d31b-b4eb-11ec-ac5a-eae7b2e135ed
last_name: HETZER
orcid: 0000-0002-2111-992X
citation:
ama: 'Buchwalter A, Kaneshiro JM, Hetzer M. Coaching from the sidelines: The nuclear
periphery in genome regulation. Nature Reviews Genetics. 2019;20(1):39-50.
doi:10.1038/s41576-018-0063-5'
apa: 'Buchwalter, A., Kaneshiro, J. M., & Hetzer, M. (2019). Coaching from the
sidelines: The nuclear periphery in genome regulation. Nature Reviews Genetics.
Springer Nature. https://doi.org/10.1038/s41576-018-0063-5'
chicago: 'Buchwalter, Abigail, Jeanae M. Kaneshiro, and Martin Hetzer. “Coaching
from the Sidelines: The Nuclear Periphery in Genome Regulation.” Nature Reviews
Genetics. Springer Nature, 2019. https://doi.org/10.1038/s41576-018-0063-5.'
ieee: 'A. Buchwalter, J. M. Kaneshiro, and M. Hetzer, “Coaching from the sidelines:
The nuclear periphery in genome regulation,” Nature Reviews Genetics, vol.
20, no. 1. Springer Nature, pp. 39–50, 2019.'
ista: 'Buchwalter A, Kaneshiro JM, Hetzer M. 2019. Coaching from the sidelines:
The nuclear periphery in genome regulation. Nature Reviews Genetics. 20(1), 39–50.'
mla: 'Buchwalter, Abigail, et al. “Coaching from the Sidelines: The Nuclear Periphery
in Genome Regulation.” Nature Reviews Genetics, vol. 20, no. 1, Springer
Nature, 2019, pp. 39–50, doi:10.1038/s41576-018-0063-5.'
short: A. Buchwalter, J.M. Kaneshiro, M. Hetzer, Nature Reviews Genetics 20 (2019)
39–50.
date_created: 2022-04-07T07:44:45Z
date_published: 2019-01-01T00:00:00Z
date_updated: 2022-07-18T08:31:42Z
day: '01'
doi: 10.1038/s41576-018-0063-5
extern: '1'
external_id:
pmid:
- '30356165'
intvolume: ' 20'
issue: '1'
keyword:
- Genetics (clinical)
- Genetics
- Molecular Biology
language:
- iso: eng
month: '01'
oa_version: None
page: 39-50
pmid: 1
publication: Nature Reviews Genetics
publication_identifier:
eissn:
- 1471-0064
issn:
- 1471-0056
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Coaching from the sidelines: The nuclear periphery in genome regulation'
type: journal_article
user_id: 72615eeb-f1f3-11ec-aa25-d4573ddc34fd
volume: 20
year: '2019'
...
---
_id: '11499'
abstract:
- lang: eng
text: Deep optical spectroscopic surveys of galaxies provide a unique opportunity
to investigate rest-frame ultra-violet (UV) emission line properties of galaxies
at z ∼ 2 − 4.5. Here we combine VLT/MUSE Guaranteed Time Observations of the Hubble
Deep Field South, Ultra Deep Field, COSMOS, and several quasar fields with other
publicly available data from VLT/VIMOS and VLT/FORS2 to construct a catalogue
of He II λ1640 emitters at z ≳ 2. The deepest areas of our MUSE pointings reach
a 3σ line flux limit of 3.1 × 10−19 erg s−1 cm−2. After discarding broad-line
active galactic nuclei, we find 13 He II λ1640 detections from MUSE with a median
MUV = −20.1 and 21 tentative He II λ1640 detections from other public surveys.
Excluding Lyα, all except two galaxies in our sample show at least one other rest-UV
emission line, with C III] λ1907, λ1909 being the most prominent. We use multi-wavelength
data available in the Hubble legacy fields to derive basic galaxy properties of
our sample through spectral energy distribution fitting techniques. Taking advantage
of the high-quality spectra obtained by MUSE (∼10 − 30 h of exposure time per
pointing), we use photo-ionisation models to study the rest-UV emission line diagnostics
of the He II λ1640 emitters. Line ratios of our sample can be reproduced by moderately
sub-solar photo-ionisation models, however, we find that including effects of
binary stars lead to degeneracies in most free parameters. Even after considering
extra ionising photons produced by extreme sub-solar metallicity binary stellar
models, photo-ionisation models are unable to reproduce rest-frame He II λ1640
equivalent widths (∼0.2 − 10 Å), thus additional mechanisms are necessary in models
to match the observed He II λ1640 properties.
acknowledgement: 'The authors wish to thank the referee for constructive comments
that improved the paper substantially. We thank the BPASS team for making the stellar
population models available. We thank Elizabeth Stanway, Claus Leitherer, Daniel
Schaerer, Jorick Vink, and Nell Byler for insightful discussions. We thank the Lorentz
Centre and the scientific organizers of the Characterizing galaxies with spectroscopy
with a view for JWST workshop held at the Lorentz Centre in 2017 October, which
promoted useful discussions in the wider community. TN, JB, and RB acknowledges
the Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) top grant TOP1.16.057.
AF acknowledges support from the ERC via an Advanced Grant under grant agreement
no. 339659-MUSICOS. JB acknowledges support by Fundação para a Ciência e a Tecnologia
(FCT) through national funds (UID/FIS/04434/2013) and Investigador FCT contract
IF/01654/2014/CP1215/CT0003, and by FEDER through COMPETE2020 (POCI-01-0145-FEDER-007672).
JR acknowledges support from the ERC Starting grant 336736 (CALENDS). This research
made use of astropy (http://www.astropy.org) a community-developed core Python package
for Astronomy (Astropy Collaboration 2013, 2018) and pandas (McKinney 2010). Figures
were generated using matplotlib (Hunter 2007) and seaborn (https://seaborn.pydata.org).
Facilities: VLT (MUSE).'
article_number: A89
article_processing_charge: No
article_type: original
author:
- first_name: Themiya
full_name: Nanayakkara, Themiya
last_name: Nanayakkara
- first_name: Jarle
full_name: Brinchmann, Jarle
last_name: Brinchmann
- first_name: Leindert
full_name: Boogaard, Leindert
last_name: Boogaard
- first_name: Rychard
full_name: Bouwens, Rychard
last_name: Bouwens
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Anna
full_name: Feltre, Anna
last_name: Feltre
- first_name: Wolfram
full_name: Kollatschny, Wolfram
last_name: Kollatschny
- first_name: Raffaella Anna
full_name: Marino, Raffaella Anna
last_name: Marino
- first_name: Michael
full_name: Maseda, Michael
last_name: Maseda
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Mieke
full_name: Paalvast, Mieke
last_name: Paalvast
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Anne
full_name: Verhamme, Anne
last_name: Verhamme
citation:
ama: Nanayakkara T, Brinchmann J, Boogaard L, et al. Exploring He II λ1640 emission
line properties at z ∼2−4. Astronomy & Astrophysics. 2019;648. doi:10.1051/0004-6361/201834565
apa: Nanayakkara, T., Brinchmann, J., Boogaard, L., Bouwens, R., Cantalupo, S.,
Feltre, A., … Verhamme, A. (2019). Exploring He II λ1640 emission line properties
at z ∼2−4. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/201834565
chicago: Nanayakkara, Themiya, Jarle Brinchmann, Leindert Boogaard, Rychard Bouwens,
Sebastiano Cantalupo, Anna Feltre, Wolfram Kollatschny, et al. “Exploring He II Λ1640
Emission Line Properties at z ∼2−4.” Astronomy & Astrophysics. EDP
Sciences, 2019. https://doi.org/10.1051/0004-6361/201834565.
ieee: T. Nanayakkara et al., “Exploring He II λ1640 emission line properties
at z ∼2−4,” Astronomy & Astrophysics, vol. 648. EDP Sciences, 2019.
ista: Nanayakkara T, Brinchmann J, Boogaard L, Bouwens R, Cantalupo S, Feltre A,
Kollatschny W, Marino RA, Maseda M, Matthee JJ, Paalvast M, Richard J, Verhamme
A. 2019. Exploring He II λ1640 emission line properties at z ∼2−4. Astronomy &
Astrophysics. 648, A89.
mla: Nanayakkara, Themiya, et al. “Exploring He II Λ1640 Emission Line Properties
at z ∼2−4.” Astronomy & Astrophysics, vol. 648, A89, EDP Sciences,
2019, doi:10.1051/0004-6361/201834565.
short: T. Nanayakkara, J. Brinchmann, L. Boogaard, R. Bouwens, S. Cantalupo, A.
Feltre, W. Kollatschny, R.A. Marino, M. Maseda, J.J. Matthee, M. Paalvast, J.
Richard, A. Verhamme, Astronomy & Astrophysics 648 (2019).
date_created: 2022-07-06T09:07:06Z
date_published: 2019-04-16T00:00:00Z
date_updated: 2022-07-19T09:36:08Z
day: '16'
doi: 10.1051/0004-6361/201834565
extern: '1'
external_id:
arxiv:
- '1902.05960'
intvolume: ' 648'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: ISM / galaxies: star formation / galaxies: evolution / galaxies: high-redshift'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1902.05960
month: '04'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1051/0004-6361/201834565e
scopus_import: '1'
status: public
title: Exploring He II λ1640 emission line properties at z ∼2−4
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 648
year: '2019'
...
---
_id: '11505'
abstract:
- lang: eng
text: "Contact. This paper presents the results obtained with the Multi-Unit Spectroscopic
Explorer (MUSE) at the ESO Very Large Telescope on the faint end of the Lyman-alpha
luminosity function (LF) based on deep observations of four lensing clusters.
The goal of our project is to set strong constraints on the relative contribution
of the Lyman-alpha emitter (LAE) population to cosmic reionization.\r\n\r\nAims.
The precise aim of the present study is to further constrain the abundance of
LAEs by taking advantage of the magnification provided by lensing clusters to
build a blindly selected sample of galaxies which is less biased than current
blank field samples in redshift and luminosity. By construction, this sample of
LAEs is complementary to those built from deep blank fields, whether observed
by MUSE or by other facilities, and makes it possible to determine the shape of
the LF at fainter levels, as well as its evolution with redshift.\r\n\r\nMethods.
We selected a sample of 156 LAEs with redshifts between 2.9 ≤ z ≤ 6.7 and magnification-corrected
luminosities in the range 39 ≲ log LLyα [erg s−1] ≲43. To properly take into account
the individual differences in detection conditions between the LAEs when computing
the LF, including lensing configurations, and spatial and spectral morphologies,
the non-parametric 1/Vmax method was adopted. The price to pay to benefit from
magnification is a reduction of the effective volume of the survey, together with
a more complex analysis procedure to properly determine the effective volume Vmax
for each galaxy. In this paper we present a complete procedure for the determination
of the LF based on IFU detections in lensing clusters. This procedure, including
some new methods for masking, effective volume integration and (individual) completeness
determinations, has been fully automated when possible, and it can be easily generalized
to the analysis of IFU observations in blank fields.\r\n\r\nResults. As a result
of this analysis, the Lyman-alpha LF has been obtained in four different redshift
bins: 2.9 < z < 6, 7, 2.9 < z < 4.0, 4.0 < z < 5.0, and 5.0 < z < 6.7
with constraints down to log LLyα = 40.5. From our data only, no significant evolution
of LF mean slope can be found. When performing a Schechter analysis also including
data from the literature to complete the present sample towards the brightest
luminosities, a steep faint end slope was measured varying from α = −1.69−0.08+0.08
to α = −1.87−0.12+0.12 between the lowest and the highest redshift bins.\r\n\r\nConclusions.
The contribution of the LAE population to the star formation rate density at z ∼ 6
is ≲50% depending on the luminosity limit considered, which is of the same order
as the Lyman-break galaxy (LBG) contribution. The evolution of the LAE contribution
with redshift depends on the assumed escape fraction of Lyman-alpha photons, and
appears to slightly increase with increasing redshift when this fraction is conservatively
set to one. Depending on the intersection between the LAE/LBG populations, the
contribution of the observed galaxies to the ionizing flux may suffice to keep
the universe ionized at z ∼ 6."
acknowledgement: We thank the anonymous referee for their critical review and useful
suggestions. This work has been carried out thanks to the support of the OCEVU Labex
(ANR-11-LABX-0060) and the A*MIDEX project (ANR-11-IDEX-0001-02) funded by the “Investissements
d’Avenir” French government programme managed by the ANR. Partially funded by the
ERC starting grant CALENDS (JR, VP, BC, JM), the Agence Nationale de la recherche
bearing the reference ANR-13-BS05-0010-02 (FOGHAR), and the “Programme National
de Cosmologie and Galaxies” (PNCG) of CNRS/INSU, France. GdV, RP, JR, GM, JM, BC,
and VP also acknowledge support by the Programa de Cooperacion Cientifica – ECOS
SUD Program C16U02. NL acknowledges funding from the European Research Council (ERC)
under the European Union’s Horizon 2020 research and innovation programme (grant
agreement No 669253), ABD acknowledges support from the ERC advanced grant “Cosmic
Gas”. LW acknowledges support by the Competitive Fund of the Leibniz Association
through grant SAW-2015-AIP-2, and TG acknowledges support from the European Research
Council under grant agreement ERC-stg-757258 (TRIPLE).. Based on observations made
with ESO Telescopes at the La Silla Paranal Observatory under programme IDs 060.A-9345,
094.A-0115, 095.A-0181, 096.A-0710, 097.A0269, 100.A-0249, and 294.A-5032. Also
based on observations obtained with the NASA/ESA Hubble Space Telescope, retrieved
from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science
Institute (STScI). STScI is operated by the Association of Universities for Research
in Astronomy, Inc. under NASA contract NAS 5-26555. This research made use of Astropy,
a community-developed core Python package for Astronomy (Astropy Collaboration 2013).
All plots in this paper were created using Matplotlib (Hunter 2007).
article_number: A3
article_processing_charge: No
article_type: original
author:
- first_name: G.
full_name: de La Vieuville, G.
last_name: de La Vieuville
- first_name: D.
full_name: Bina, D.
last_name: Bina
- first_name: R.
full_name: Pello, R.
last_name: Pello
- first_name: G.
full_name: Mahler, G.
last_name: Mahler
- first_name: J.
full_name: Richard, J.
last_name: Richard
- first_name: A. B.
full_name: Drake, A. B.
last_name: Drake
- first_name: E. C.
full_name: Herenz, E. C.
last_name: Herenz
- first_name: F. E.
full_name: Bauer, F. E.
last_name: Bauer
- first_name: B.
full_name: Clément, B.
last_name: Clément
- first_name: D.
full_name: Lagattuta, D.
last_name: Lagattuta
- first_name: N.
full_name: Laporte, N.
last_name: Laporte
- first_name: J.
full_name: Martinez, J.
last_name: Martinez
- first_name: V.
full_name: Patrício, V.
last_name: Patrício
- first_name: L.
full_name: Wisotzki, L.
last_name: Wisotzki
- first_name: J.
full_name: Zabl, J.
last_name: Zabl
- first_name: R. J.
full_name: Bouwens, R. J.
last_name: Bouwens
- first_name: T.
full_name: Contini, T.
last_name: Contini
- first_name: T.
full_name: Garel, T.
last_name: Garel
- first_name: B.
full_name: Guiderdoni, B.
last_name: Guiderdoni
- first_name: R. A.
full_name: Marino, R. A.
last_name: Marino
- first_name: M. V.
full_name: Maseda, M. V.
last_name: Maseda
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: J.
full_name: Schaye, J.
last_name: Schaye
- first_name: G.
full_name: Soucail, G.
last_name: Soucail
citation:
ama: de La Vieuville G, Bina D, Pello R, et al. Faint end of the z ∼ 3–7 luminosity
function of Lyman-alpha emitters behind lensing clusters observed with MUSE. Astronomy
& Astrophysics. 2019;628. doi:10.1051/0004-6361/201834471
apa: de La Vieuville, G., Bina, D., Pello, R., Mahler, G., Richard, J., Drake, A.
B., … Soucail, G. (2019). Faint end of the z ∼ 3–7 luminosity function of Lyman-alpha
emitters behind lensing clusters observed with MUSE. Astronomy & Astrophysics.
EDP Sciences. https://doi.org/10.1051/0004-6361/201834471
chicago: La Vieuville, G. de, D. Bina, R. Pello, G. Mahler, J. Richard, A. B. Drake,
E. C. Herenz, et al. “Faint End of the z ∼ 3–7 Luminosity Function of Lyman-Alpha
Emitters behind Lensing Clusters Observed with MUSE.” Astronomy & Astrophysics.
EDP Sciences, 2019. https://doi.org/10.1051/0004-6361/201834471.
ieee: G. de La Vieuville et al., “Faint end of the z ∼ 3–7 luminosity function
of Lyman-alpha emitters behind lensing clusters observed with MUSE,” Astronomy
& Astrophysics, vol. 628. EDP Sciences, 2019.
ista: de La Vieuville G, Bina D, Pello R, Mahler G, Richard J, Drake AB, Herenz
EC, Bauer FE, Clément B, Lagattuta D, Laporte N, Martinez J, Patrício V, Wisotzki
L, Zabl J, Bouwens RJ, Contini T, Garel T, Guiderdoni B, Marino RA, Maseda MV,
Matthee JJ, Schaye J, Soucail G. 2019. Faint end of the z ∼ 3–7 luminosity function
of Lyman-alpha emitters behind lensing clusters observed with MUSE. Astronomy
& Astrophysics. 628, A3.
mla: de La Vieuville, G., et al. “Faint End of the z ∼ 3–7 Luminosity Function of
Lyman-Alpha Emitters behind Lensing Clusters Observed with MUSE.” Astronomy
& Astrophysics, vol. 628, A3, EDP Sciences, 2019, doi:10.1051/0004-6361/201834471.
short: G. de La Vieuville, D. Bina, R. Pello, G. Mahler, J. Richard, A.B. Drake,
E.C. Herenz, F.E. Bauer, B. Clément, D. Lagattuta, N. Laporte, J. Martinez, V.
Patrício, L. Wisotzki, J. Zabl, R.J. Bouwens, T. Contini, T. Garel, B. Guiderdoni,
R.A. Marino, M.V. Maseda, J.J. Matthee, J. Schaye, G. Soucail, Astronomy &
Astrophysics 628 (2019).
date_created: 2022-07-06T10:09:36Z
date_published: 2019-07-25T00:00:00Z
date_updated: 2022-07-19T09:36:31Z
day: '25'
doi: 10.1051/0004-6361/201834471
extern: '1'
external_id:
arxiv:
- '1905.13696'
intvolume: ' 628'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'gravitational lensing: strong / galaxies: high-redshift / dark ages'
- reionization
- 'first stars / galaxies: clusters: general / galaxies: luminosity function'
- mass function
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1905.13696
month: '07'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Faint end of the z ∼ 3–7 luminosity function of Lyman-alpha emitters behind
lensing clusters observed with MUSE
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 628
year: '2019'
...
---
_id: '11507'
abstract:
- lang: eng
text: 'Lyman-α (Lyα) is intrinsically the brightest line emitted from active galaxies.
While it originates from many physical processes, for star-forming galaxies the
intrinsic Lyα luminosity is a direct tracer of the Lyman-continuum (LyC) radiation
produced by the most massive O- and early-type B-stars (M⋆ ≳ 10 M⊙) with lifetimes
of a few Myrs. As such, Lyα luminosity should be an excellent instantaneous star
formation rate (SFR) indicator. However, its resonant nature and susceptibility
to dust as a rest-frame UV photon makes Lyα very hard to interpret due to the
uncertain Lyα escape fraction, fesc, Lyα. Here we explore results from the CAlibrating
LYMan-α with Hα (CALYMHA) survey at z = 2.2, follow-up of Lyα emitters (LAEs)
at z = 2.2 − 2.6 and a z ∼ 0−0.3 compilation of LAEs to directly measure fesc, Lyα
with Hα. We derive a simple empirical relation that robustly retrieves fesc, Lyα
as a function of Lyα rest-frame EW (EW0): fesc,Lyα = 0.0048 EW0[Å] ± 0.05 and
we show that it constrains a well-defined anti-correlation between ionisation
efficiency (ξion) and dust extinction in LAEs. Observed Lyα luminosities and EW0
are easy measurable quantities at high redshift, thus making our relation a practical
tool to estimate intrinsic Lyα and LyC luminosities under well controlled and
simple assumptions. Our results allow observed Lyα luminosities to be used to
compute SFRs for LAEs at z ∼ 0−2.6 within ±0.2 dex of the Hα dust corrected SFRs.
We apply our empirical SFR(Lyα,EW0) calibration to several sources at z ≥ 2.6
to find that star-forming LAEs have SFRs typically ranging from 0.1 to 20 M⊙ yr−1
and that our calibration might be even applicable for the most luminous LAEs within
the epoch of re-ionisation. Our results imply high ionisation efficiencies (log10[ξion/Hz erg−1]
= 25.4−25.6) and low dust content in LAEs across cosmic time, and will be easily
tested with future observations with JWST which can obtain Hα and Hβ measurements
for high-redshift LAEs.'
acknowledgement: We thank the anonymous referees for multiple comments and suggestions
which have improved the manuscript. JM acknowledges the support of a Huygens PhD
fellowship from Leiden University. We have benefited greatly from the publicly available
programming language PYTHON, including the NUMPY & SCIPY (Van Der Walt et al. 2011;
Jones et al. 2001), MATPLOTLIB (Hunter 2007) and ASTROPY (Astropy Collaboration
2013) packages, and the TOPCAT analysis program (Taylor 2013). The results and samples
of LAEs used for this paper are publicly available (see e.g. Sobral et al. 2017,
2018a) and we also provide the toy model used as a PYTHON script.
article_number: A157
article_processing_charge: No
article_type: original
author:
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
citation:
ama: 'Sobral D, Matthee JJ. Predicting Lyα escape fractions with a simple observable:
Lyα in emission as an empirically calibrated star formation rate indicator. Astronomy
& Astrophysics. 2019;623. doi:10.1051/0004-6361/201833075'
apa: 'Sobral, D., & Matthee, J. J. (2019). Predicting Lyα escape fractions with
a simple observable: Lyα in emission as an empirically calibrated star formation
rate indicator. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/201833075'
chicago: 'Sobral, David, and Jorryt J Matthee. “Predicting Lyα Escape Fractions
with a Simple Observable: Lyα in Emission as an Empirically Calibrated Star Formation
Rate Indicator.” Astronomy & Astrophysics. EDP Sciences, 2019. https://doi.org/10.1051/0004-6361/201833075.'
ieee: 'D. Sobral and J. J. Matthee, “Predicting Lyα escape fractions with a simple
observable: Lyα in emission as an empirically calibrated star formation rate indicator,”
Astronomy & Astrophysics, vol. 623. EDP Sciences, 2019.'
ista: 'Sobral D, Matthee JJ. 2019. Predicting Lyα escape fractions with a simple
observable: Lyα in emission as an empirically calibrated star formation rate indicator.
Astronomy & Astrophysics. 623, A157.'
mla: 'Sobral, David, and Jorryt J. Matthee. “Predicting Lyα Escape Fractions with
a Simple Observable: Lyα in Emission as an Empirically Calibrated Star Formation
Rate Indicator.” Astronomy & Astrophysics, vol. 623, A157, EDP Sciences,
2019, doi:10.1051/0004-6361/201833075.'
short: D. Sobral, J.J. Matthee, Astronomy & Astrophysics 623 (2019).
date_created: 2022-07-06T11:08:16Z
date_published: 2019-03-26T00:00:00Z
date_updated: 2022-07-19T09:37:20Z
day: '26'
doi: 10.1051/0004-6361/201833075
extern: '1'
external_id:
arxiv:
- '1803.08923'
intvolume: ' 623'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: high-redshift / galaxies: star formation / galaxies: statistics / galaxies:
evolution / galaxies: formation / galaxies: ISM'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1803.08923
month: '03'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Predicting Lyα escape fractions with a simple observable: Lyα in emission
as an empirically calibrated star formation rate indicator'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 623
year: '2019'
...
---
_id: '11514'
abstract:
- lang: eng
text: We discuss the nature and physical properties of gas-mass selected galaxies
in the ALMA spectroscopic survey (ASPECS) of the Hubble Ultra Deep Field (HUDF).
We capitalize on the deep optical integral-field spectroscopy from the Multi Unit
Spectroscopic Explorer (MUSE) HUDF Survey and multiwavelength data to uniquely
associate all 16 line emitters, detected in the ALMA data without preselection,
with rotational transitions of carbon monoxide (CO). We identify 10 as CO(2–1)
at 1 < z < 2, 5 as CO(3–2) at 2 < z < 3, and 1 as CO(4–3) at z = 3.6. Using the
MUSE data as a prior, we identify two additional CO(2–1) emitters, increasing
the total sample size to 18. We infer metallicities consistent with (super-)solar
for the CO-detected galaxies at z ≤ 1.5, motivating our choice of a Galactic conversion
factor between CO luminosity and molecular gas mass for these galaxies. Using
deep Chandra imaging of the HUDF, we determine an X-ray AGN fraction of 20% and
60% among the CO emitters at z ∼ 1.4 and z ∼ 2.6, respectively. Being a CO-flux-limited
survey, ASPECS-LP detects molecular gas in galaxies on, above, and below the main
sequence (MS) at z ∼ 1.4. For stellar masses ≥1010 (1010.5) ${M}_{\odot }$, we
detect about 40% (50%) of all galaxies in the HUDF at 1 < z < 2 (2 < z < 3). The
combination of ALMA and MUSE integral-field spectroscopy thus enables an unprecedented
view of MS galaxies during the peak of galaxy formation.
acknowledgement: "We are grateful to the referee for providing a constructive report.
L.A.B. wants to thank Madusha L.P. Gunawardhana for her help with platefit. Based
on observations collected at the European Southern Observatory under ESO programme(s):
094.A-2089(B), 095.A-0010(A), 096.A-0045(A), and 096.A-0045(B). This paper makes
use of the following ALMA data: ADS/JAO.ALMA#2016.1.00324.L. ALMA is a partnership
of ESO (representing its member states), NSF (USA) and NINS (Japan), together with
NRC (Canada), NSC and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation
with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO,
and NAOJ. The National Radio Astronomy Observatory is a facility of the National
Science Foundation operated under cooperative agreement by Associated Universities,
Inc.\r\n\r\n\"Este trabajo contó con el apoyo de CONICYT+Programa de Astronomía+
Fondo CHINA-CONICYT\" J.G-L. acknowledges partial support from ALMA-CONICYT project
31160033. F.E.B. acknowledges support from CONICYT grant Basal AFB-170002 (FEB),
and the Ministry of Economy, Development, and Tourism's Millennium Science Initiative
through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS
(FEB). J.B. acknowledges support by Fundação para a Ciência e a Tecnologia (FCT)
through national funds (UID/FIS/04434/2013) and Investigador FCT contract IF/01654/2014/CP1215/CT0003.,
and by FEDER through COMPETE2020 (POCI-01-0145-FEDER-007672). T.D-S. acknowledges
support from ALMA-CONYCIT project 31130005 and FONDECYT project 1151239. J.H. acknowledges
support of the VIDI research programme with project number 639.042.611, which is
(partly) financed by the Netherlands Organization for Scientific Research (NWO).
D.R. acknowledges support from the National Science Foundation under grant No. AST-1614213.
I.R.S. acknowledges support from the ERC Advanced Grant DUSTYGAL (321334) and STFC
(ST/P000541/1)\r\n\r\nWork on Gnuastro has been funded by the Japanese MEXT scholarship
and its Grant-in-Aid for Scientific Research (21244012, 24253003), the ERC advanced
grant 339659-MUSICOS, European Union's Horizon 2020 research and innovation programme
under Marie Sklodowska-Curie grant agreement No. 721463 to the SUNDIAL ITN, and
from the Spanish MINECO under grant No. AYA2016-76219-P."
article_number: '140'
article_processing_charge: No
article_type: original
author:
- first_name: Leindert A.
full_name: Boogaard, Leindert A.
last_name: Boogaard
- first_name: Roberto
full_name: Decarli, Roberto
last_name: Decarli
- first_name: Jorge
full_name: González-López, Jorge
last_name: González-López
- first_name: Paul
full_name: van der Werf, Paul
last_name: van der Werf
- first_name: Fabian
full_name: Walter, Fabian
last_name: Walter
- first_name: Rychard
full_name: Bouwens, Rychard
last_name: Bouwens
- first_name: Manuel
full_name: Aravena, Manuel
last_name: Aravena
- first_name: Chris
full_name: Carilli, Chris
last_name: Carilli
- first_name: Franz Erik
full_name: Bauer, Franz Erik
last_name: Bauer
- first_name: Jarle
full_name: Brinchmann, Jarle
last_name: Brinchmann
- first_name: Thierry
full_name: Contini, Thierry
last_name: Contini
- first_name: Pierre
full_name: Cox, Pierre
last_name: Cox
- first_name: Elisabete
full_name: da Cunha, Elisabete
last_name: da Cunha
- first_name: Emanuele
full_name: Daddi, Emanuele
last_name: Daddi
- first_name: Tanio
full_name: Díaz-Santos, Tanio
last_name: Díaz-Santos
- first_name: Jacqueline
full_name: Hodge, Jacqueline
last_name: Hodge
- first_name: Hanae
full_name: Inami, Hanae
last_name: Inami
- first_name: Rob
full_name: Ivison, Rob
last_name: Ivison
- first_name: Michael
full_name: Maseda, Michael
last_name: Maseda
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Pascal
full_name: Oesch, Pascal
last_name: Oesch
- first_name: Gergö
full_name: Popping, Gergö
last_name: Popping
- first_name: Dominik
full_name: Riechers, Dominik
last_name: Riechers
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Sander
full_name: Schouws, Sander
last_name: Schouws
- first_name: Ian
full_name: Smail, Ian
last_name: Smail
- first_name: Axel
full_name: Weiss, Axel
last_name: Weiss
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
- first_name: Roland
full_name: Bacon, Roland
last_name: Bacon
- first_name: Paulo C.
full_name: Cortes, Paulo C.
last_name: Cortes
- first_name: Hans-Walter
full_name: Rix, Hans-Walter
last_name: Rix
- first_name: Rachel S.
full_name: Somerville, Rachel S.
last_name: Somerville
- first_name: Mark
full_name: Swinbank, Mark
last_name: Swinbank
- first_name: Jeff
full_name: Wagg, Jeff
last_name: Wagg
citation:
ama: 'Boogaard LA, Decarli R, González-López J, et al. The ALMA spectroscopic survey
in the HUDF: Nature and physical properties of gas-mass selected galaxies using
MUSE spectroscopy. The Astrophysical Journal. 2019;882(2). doi:10.3847/1538-4357/ab3102'
apa: 'Boogaard, L. A., Decarli, R., González-López, J., van der Werf, P., Walter,
F., Bouwens, R., … Wagg, J. (2019). The ALMA spectroscopic survey in the HUDF:
Nature and physical properties of gas-mass selected galaxies using MUSE spectroscopy.
The Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ab3102'
chicago: 'Boogaard, Leindert A., Roberto Decarli, Jorge González-López, Paul van
der Werf, Fabian Walter, Rychard Bouwens, Manuel Aravena, et al. “The ALMA Spectroscopic
Survey in the HUDF: Nature and Physical Properties of Gas-Mass Selected Galaxies
Using MUSE Spectroscopy.” The Astrophysical Journal. IOP Publishing, 2019.
https://doi.org/10.3847/1538-4357/ab3102.'
ieee: 'L. A. Boogaard et al., “The ALMA spectroscopic survey in the HUDF:
Nature and physical properties of gas-mass selected galaxies using MUSE spectroscopy,”
The Astrophysical Journal, vol. 882, no. 2. IOP Publishing, 2019.'
ista: 'Boogaard LA, Decarli R, González-López J, van der Werf P, Walter F, Bouwens
R, Aravena M, Carilli C, Bauer FE, Brinchmann J, Contini T, Cox P, da Cunha E,
Daddi E, Díaz-Santos T, Hodge J, Inami H, Ivison R, Maseda M, Matthee JJ, Oesch
P, Popping G, Riechers D, Schaye J, Schouws S, Smail I, Weiss A, Wisotzki L, Bacon
R, Cortes PC, Rix H-W, Somerville RS, Swinbank M, Wagg J. 2019. The ALMA spectroscopic
survey in the HUDF: Nature and physical properties of gas-mass selected galaxies
using MUSE spectroscopy. The Astrophysical Journal. 882(2), 140.'
mla: 'Boogaard, Leindert A., et al. “The ALMA Spectroscopic Survey in the HUDF:
Nature and Physical Properties of Gas-Mass Selected Galaxies Using MUSE Spectroscopy.”
The Astrophysical Journal, vol. 882, no. 2, 140, IOP Publishing, 2019,
doi:10.3847/1538-4357/ab3102.'
short: L.A. Boogaard, R. Decarli, J. González-López, P. van der Werf, F. Walter,
R. Bouwens, M. Aravena, C. Carilli, F.E. Bauer, J. Brinchmann, T. Contini, P.
Cox, E. da Cunha, E. Daddi, T. Díaz-Santos, J. Hodge, H. Inami, R. Ivison, M.
Maseda, J.J. Matthee, P. Oesch, G. Popping, D. Riechers, J. Schaye, S. Schouws,
I. Smail, A. Weiss, L. Wisotzki, R. Bacon, P.C. Cortes, H.-W. Rix, R.S. Somerville,
M. Swinbank, J. Wagg, The Astrophysical Journal 882 (2019).
date_created: 2022-07-06T13:31:35Z
date_published: 2019-09-11T00:00:00Z
date_updated: 2022-07-19T09:50:55Z
day: '11'
doi: 10.3847/1538-4357/ab3102
extern: '1'
external_id:
arxiv:
- '1903.09167'
intvolume: ' 882'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1903.09167
month: '09'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The ALMA spectroscopic survey in the HUDF: Nature and physical properties
of gas-mass selected galaxies using MUSE spectroscopy'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 882
year: '2019'
...
---
_id: '11516'
abstract:
- lang: eng
text: The well-known quasar SDSS J095253.83+011421.9 (J0952+0114) at z = 3.02 has
one of the most peculiar spectra discovered so far, showing the presence of narrow
Lyα and broad metal emission lines. Although recent studies have suggested that
a proximate damped Lyα absorption (PDLA) system causes this peculiar spectrum,
the origin of the gas associated with the PDLA is unknown. Here we report the
results of observations with the Multi Unit Spectroscopic Explorer (MUSE) that
reveal a new giant (≈100 physical kpc) Lyα nebula. The detailed analysis of the
Lyα velocity, velocity dispersion, and surface brightness profiles suggests that
the J0952+0114 Lyα nebula shares similar properties with other QSO nebulae previously
detected with MUSE, implying that the PDLA in J0952+0144 is covering only a small
fraction of the solid angle of the QSO emission. We also detected bright and spectrally
narrow C iv λ1550 and He ii λ1640 extended emission around J0952+0114 with velocity
centroids similar to the peak of the extended and central narrow Lyα emission.
The presence of a peculiarly bright, unresolved, and relatively broad He ii λ1640
emission in the central region at exactly the same PDLA redshift hints at the
possibility that the PDLA originates in a clumpy outflow with a bulk velocity
of about 500 km s−1. The smaller velocity dispersion of the large-scale Lyα emission
suggests that the high-speed outflow is confined to the central region. Lastly,
the derived spatially resolved He ii/Lyα and C iv/Lyα maps show a positive gradient
with the distance to the QSO, hinting at a non-homogeneous distribution of the
ionization parameter.
acknowledgement: We thank Lutz Wisotzki for stimulating discussions. This work is
based on observations taken at ESO/VLT in Paranal and we would like to thank the
ESO staff for their assistance and support during the MUSE GTO campaigns. This work
was supported by the Swiss National Science Foundation. This research made use of
Astropy, a community-developed core PYTHON package for astronomy (Astropy Collaboration
et al. 2013), NumPy and SciPy (Oliphant 2007), Matplotlib (Hunter 2007), IPython
(Perez & Granger 2007), and of the NASA Astrophysics Data System Bibliographic Services.
S.C. and G.P. gratefully acknowledge support from Swiss National Science Foundation
grant PP00P2−163824. A.F. acknowledges support from the ERC via Advanced Grant under
grants agreement no. 339659-MUSICOS. J.B. acknowledges support by FCT/MCTES through
national funds by grant UID/FIS/04434/2019 and through Investigador FCT Contract
No. IF/01654/2014/CP1215/CT0003. S.D.J. is supported by a NASA Hubble Fellowship
(HST-HF2-51375.001-A). T.N. acknowledges the Nederlandse Organisatie voor Wetenschappelijk
Onderzoek (NWO) top grant TOP1.16.057.
article_number: '47'
article_processing_charge: No
article_type: original
author:
- first_name: Raffaella Anna
full_name: Marino, Raffaella Anna
last_name: Marino
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Simon J.
full_name: Lilly, Simon J.
last_name: Lilly
- first_name: Sofia
full_name: Gallego, Sofia
last_name: Gallego
- first_name: Ruari
full_name: Mackenzie, Ruari
last_name: Mackenzie
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Jarle
full_name: Brinchmann, Jarle
last_name: Brinchmann
- first_name: Nicolas
full_name: Bouché, Nicolas
last_name: Bouché
- first_name: Anna
full_name: Feltre, Anna
last_name: Feltre
- first_name: Sowgat
full_name: Muzahid, Sowgat
last_name: Muzahid
- first_name: Ilane
full_name: Schroetter, Ilane
last_name: Schroetter
- first_name: Sean D.
full_name: Johnson, Sean D.
last_name: Johnson
- first_name: Themiya
full_name: Nanayakkara, Themiya
last_name: Nanayakkara
citation:
ama: Marino RA, Cantalupo S, Pezzulli G, et al. A giant Lyα nebula and a small-scale
clumpy outflow in the system of the exotic quasar J0952+0114 unveiled by MUSE.
The Astrophysical Journal. 2019;880(1). doi:10.3847/1538-4357/ab2881
apa: Marino, R. A., Cantalupo, S., Pezzulli, G., Lilly, S. J., Gallego, S., Mackenzie,
R., … Nanayakkara, T. (2019). A giant Lyα nebula and a small-scale clumpy outflow
in the system of the exotic quasar J0952+0114 unveiled by MUSE. The Astrophysical
Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ab2881
chicago: Marino, Raffaella Anna, Sebastiano Cantalupo, Gabriele Pezzulli, Simon
J. Lilly, Sofia Gallego, Ruari Mackenzie, Jorryt J Matthee, et al. “A Giant Lyα
Nebula and a Small-Scale Clumpy Outflow in the System of the Exotic Quasar J0952+0114
Unveiled by MUSE.” The Astrophysical Journal. IOP Publishing, 2019. https://doi.org/10.3847/1538-4357/ab2881.
ieee: R. A. Marino et al., “A giant Lyα nebula and a small-scale clumpy outflow
in the system of the exotic quasar J0952+0114 unveiled by MUSE,” The Astrophysical
Journal, vol. 880, no. 1. IOP Publishing, 2019.
ista: Marino RA, Cantalupo S, Pezzulli G, Lilly SJ, Gallego S, Mackenzie R, Matthee
JJ, Brinchmann J, Bouché N, Feltre A, Muzahid S, Schroetter I, Johnson SD, Nanayakkara
T. 2019. A giant Lyα nebula and a small-scale clumpy outflow in the system of
the exotic quasar J0952+0114 unveiled by MUSE. The Astrophysical Journal. 880(1),
47.
mla: Marino, Raffaella Anna, et al. “A Giant Lyα Nebula and a Small-Scale Clumpy
Outflow in the System of the Exotic Quasar J0952+0114 Unveiled by MUSE.” The
Astrophysical Journal, vol. 880, no. 1, 47, IOP Publishing, 2019, doi:10.3847/1538-4357/ab2881.
short: R.A. Marino, S. Cantalupo, G. Pezzulli, S.J. Lilly, S. Gallego, R. Mackenzie,
J.J. Matthee, J. Brinchmann, N. Bouché, A. Feltre, S. Muzahid, I. Schroetter,
S.D. Johnson, T. Nanayakkara, The Astrophysical Journal 880 (2019).
date_created: 2022-07-06T13:50:33Z
date_published: 2019-07-24T00:00:00Z
date_updated: 2022-08-18T10:20:18Z
day: '24'
doi: 10.3847/1538-4357/ab2881
extern: '1'
external_id:
arxiv:
- '1906.06347'
intvolume: ' 880'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1906.06347
month: '07'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: A giant Lyα nebula and a small-scale clumpy outflow in the system of the exotic
quasar J0952+0114 unveiled by MUSE
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 880
year: '2019'
...
---
_id: '11515'
abstract:
- lang: eng
text: We present new deep ALMA and Hubble Space Telescope (HST)/WFC3 observations
of MASOSA and VR7, two luminous Lyα emitters (LAEs) at z = 6.5, for which the
UV continuum levels differ by a factor of four. No IR dust continuum emission
is detected in either, indicating little amounts of obscured star formation and/or
high dust temperatures. MASOSA, with a UV luminosity M1500 = −20.9, compact size,
and very high Lyα ${\mathrm{EW}}_{0}\approx 145\,\mathring{\rm A} $, is undetected
in [C ii] to a limit of L[C ii] < 2.2 × 107 L⊙, implying a metallicity Z ≲ 0.07
Z⊙. Intriguingly, our HST data indicate a red UV slope β = −1.1 ± 0.7, at odds
with the low dust content. VR7, which is a bright (M1500 = −22.4) galaxy with
moderate color (β = −1.4 ± 0.3) and Lyα EW0 = 34 Å, is clearly detected in [C
ii] emission (S/N = 15). VR7's rest-frame UV morphology can be described by two
components separated by ≈1.5 kpc and is globally more compact than the [C ii]
emission. The global [C ii]/UV ratio indicates Z ≈ 0.2 Z⊙, but there are large
variations in the UV/[C ii] ratio on kiloparsec scales. We also identify diffuse,
possibly outflowing, [C ii]-emitting gas at ≈100 km s−1 with respect to the peak.
VR7 appears to be assembling its components at a slightly more evolved stage than
other luminous LAEs, with outflows already shaping its direct environment at z
∼ 7. Our results further indicate that the global [C ii]−UV relation steepens
at SFR < 30 M⊙ yr−1, naturally explaining why the [C ii]/UV ratio is anticorrelated
with Lyα EW in many, but not all, observed LAEs.
acknowledgement: 'We thank the anonymous referee for constructive comments and suggestions.
We thank Max Gronke for comments on an earlier version of this paper. L.V. acknowledges
funding from the European Union’s Horizon 2020 research and innovation program under
the Marie Skłodowska-Curie grant agreement No. 746119. This paper makes use of the
following ALMA data: ADS/JAO.ALMA#2017.1.01451.S. ALMA is a partnership of ESO (representing
its member states), NSF (USA), and NINS (Japan), together with NRC (Canada), NSC
and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic
of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO, and NAOJ. Based
on observations obtained with the Very Large Telescope, programs 294.A-5018, 097.A-0943,
and 99.A-0462. Based on observations made with the NASA/ESA Hubble Space Telescope,
obtained (from the Data Archive) at the Space Telescope Science Institute, which
is operated by the Association of Universities for Research in Astronomy, Inc.,
under NASA contract NAS 5-26555. These observations are associated with program
No. 14699.'
article_number: '124'
article_processing_charge: No
article_type: original
author:
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: D.
full_name: Sobral, D.
last_name: Sobral
- first_name: L. A.
full_name: Boogaard, L. A.
last_name: Boogaard
- first_name: H.
full_name: Röttgering, H.
last_name: Röttgering
- first_name: L.
full_name: Vallini, L.
last_name: Vallini
- first_name: A.
full_name: Ferrara, A.
last_name: Ferrara
- first_name: A.
full_name: Paulino-Afonso, A.
last_name: Paulino-Afonso
- first_name: F.
full_name: Boone, F.
last_name: Boone
- first_name: D.
full_name: Schaerer, D.
last_name: Schaerer
- first_name: B.
full_name: Mobasher, B.
last_name: Mobasher
citation:
ama: Matthee JJ, Sobral D, Boogaard LA, et al. Resolved UV and [C ii] structures
of luminous galaxies within the epoch of reionization. The Astrophysical Journal.
2019;881(2). doi:10.3847/1538-4357/ab2f81
apa: Matthee, J. J., Sobral, D., Boogaard, L. A., Röttgering, H., Vallini, L., Ferrara,
A., … Mobasher, B. (2019). Resolved UV and [C ii] structures of luminous galaxies
within the epoch of reionization. The Astrophysical Journal. IOP Publishing.
https://doi.org/10.3847/1538-4357/ab2f81
chicago: Matthee, Jorryt J, D. Sobral, L. A. Boogaard, H. Röttgering, L. Vallini,
A. Ferrara, A. Paulino-Afonso, F. Boone, D. Schaerer, and B. Mobasher. “Resolved
UV and [C Ii] Structures of Luminous Galaxies within the Epoch of Reionization.”
The Astrophysical Journal. IOP Publishing, 2019. https://doi.org/10.3847/1538-4357/ab2f81.
ieee: J. J. Matthee et al., “Resolved UV and [C ii] structures of luminous
galaxies within the epoch of reionization,” The Astrophysical Journal,
vol. 881, no. 2. IOP Publishing, 2019.
ista: Matthee JJ, Sobral D, Boogaard LA, Röttgering H, Vallini L, Ferrara A, Paulino-Afonso
A, Boone F, Schaerer D, Mobasher B. 2019. Resolved UV and [C ii] structures of
luminous galaxies within the epoch of reionization. The Astrophysical Journal.
881(2), 124.
mla: Matthee, Jorryt J., et al. “Resolved UV and [C Ii] Structures of Luminous Galaxies
within the Epoch of Reionization.” The Astrophysical Journal, vol. 881,
no. 2, 124, IOP Publishing, 2019, doi:10.3847/1538-4357/ab2f81.
short: J.J. Matthee, D. Sobral, L.A. Boogaard, H. Röttgering, L. Vallini, A. Ferrara,
A. Paulino-Afonso, F. Boone, D. Schaerer, B. Mobasher, The Astrophysical Journal
881 (2019).
date_created: 2022-07-06T13:38:15Z
date_published: 2019-08-21T00:00:00Z
date_updated: 2022-08-18T10:19:48Z
day: '21'
doi: 10.3847/1538-4357/ab2f81
extern: '1'
external_id:
arxiv:
- '1903.08171'
intvolume: ' 881'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1903.08171
month: '08'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Resolved UV and [C ii] structures of luminous galaxies within the epoch of
reionization
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 881
year: '2019'
...
---
_id: '11517'
abstract:
- lang: eng
text: To understand star formation in galaxies, we investigate the star formation
rate (SFR) surface density (ΣSFR) profiles for galaxies, based on a well-defined
sample of 976 star-forming MaNGA galaxies. We find that the typical ΣSFR profiles
within 1.5Re of normal SF galaxies can be well described by an exponential function
for different stellar mass intervals, while the sSFR profile shows positive gradients,
especially for more massive SF galaxies. This is due to the more pronounced central
cores or bulges rather than the onset of a `quenching' process. While galaxies
that lie significantly above (or below) the star formation main sequence (SFMS)
show overall an elevation (or suppression) of ΣSFR at all radii, this central
elevation (or suppression) is more pronounced in more massive galaxies. The degree
of central enhancement and suppression is quite symmetric, suggesting that both
the elevation and suppression of star formation are following the same physical
processes. Furthermore, we find that the dispersion in ΣSFR within and across
the population is found to be tightly correlated with the inferred gas depletion
time, whether based on the stellar surface mass density or the orbital dynamical
time. This suggests that we are seeing the response of a simple gas-regulator
system to variations in the accretion rate. This is explored using a heuristic
model that can quantitatively explain the dependence of σ(ΣSFR) on gas depletion
timescale. Variations in accretion rate are progressively more damped out in regions
of low star-formation efficiency leading to a reduced amplitude of variations
in star-formation.
acknowledgement: "We are grateful to the anonymous referee for their thoughtful and
constructive review of the paper and their several suggestions (including the analysis
of Section 3.4), which have improved the paper. This research has been supported
by the Swiss National Science Foundation.\r\n\r\nFunding for the Sloan Digital Sky
Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department
of Energy Office of Science, and the Participating Institutions. SDSS-IV acknowledges
support and resources from the Center for High-Performance Computing at the University
of Utah. The SDSS website is www.sdss.org.\r\n\r\nSDSS-IV is managed by the Astrophysical
Research Consortium for the Participating Institutions of the SDSS Collaboration,
including the Brazilian Participation Group, the Carnegie Institution for Science,
Carnegie Mellon University, the Chilean Participation Group, the French Participation
Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofísica de
Canarias, the Johns Hopkins University, Kavli Institute for the Physics and Mathematics
of the Universe (IPMU)/University of Tokyo, Lawrence Berkeley National Laboratory,
Leibniz Institut für Astrophysik Potsdam (AIP), Max-Planck-Institut für Astronomie
(MPIA Heidelberg), Max-Planck-Institut für Astrophysik (MPA Garching), Max-Planck-Institut
für Extraterrestrische Physik (MPE), National Astronomical Observatory of China,
New Mexico State University, New York University, University of Notre Dame, Observatário
Nacional/MCTI, the Ohio State University, Pennsylvania State University, Shanghai
Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional
Autónoma de México, University of Arizona, University of Colorado Boulder, University
of Oxford, University of Portsmouth, University of Utah, University of Virginia,
University of Washington, University of Wisconsin, Vanderbilt University, and Yale
University"
article_number: '132'
article_processing_charge: No
article_type: original
author:
- first_name: Enci
full_name: Wang, Enci
last_name: Wang
- first_name: Simon J.
full_name: Lilly, Simon J.
last_name: Lilly
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
citation:
ama: Wang E, Lilly SJ, Pezzulli G, Matthee JJ. On the elevation and suppression
of star formation within galaxies. The Astrophysical Journal. 2019;877(2).
doi:10.3847/1538-4357/ab1c5b
apa: Wang, E., Lilly, S. J., Pezzulli, G., & Matthee, J. J. (2019). On the elevation
and suppression of star formation within galaxies. The Astrophysical Journal.
IOP Publishing. https://doi.org/10.3847/1538-4357/ab1c5b
chicago: Wang, Enci, Simon J. Lilly, Gabriele Pezzulli, and Jorryt J Matthee. “On
the Elevation and Suppression of Star Formation within Galaxies.” The Astrophysical
Journal. IOP Publishing, 2019. https://doi.org/10.3847/1538-4357/ab1c5b.
ieee: E. Wang, S. J. Lilly, G. Pezzulli, and J. J. Matthee, “On the elevation and
suppression of star formation within galaxies,” The Astrophysical Journal,
vol. 877, no. 2. IOP Publishing, 2019.
ista: Wang E, Lilly SJ, Pezzulli G, Matthee JJ. 2019. On the elevation and suppression
of star formation within galaxies. The Astrophysical Journal. 877(2), 132.
mla: Wang, Enci, et al. “On the Elevation and Suppression of Star Formation within
Galaxies.” The Astrophysical Journal, vol. 877, no. 2, 132, IOP Publishing,
2019, doi:10.3847/1538-4357/ab1c5b.
short: E. Wang, S.J. Lilly, G. Pezzulli, J.J. Matthee, The Astrophysical Journal
877 (2019).
date_created: 2022-07-07T08:38:24Z
date_published: 2019-06-04T00:00:00Z
date_updated: 2022-08-18T10:19:08Z
day: '04'
doi: 10.3847/1538-4357/ab1c5b
extern: '1'
external_id:
arxiv:
- '1901.10276'
intvolume: ' 877'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1901.10276
month: '06'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the elevation and suppression of star formation within galaxies
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 877
year: '2019'
...
---
_id: '11535'
abstract:
- lang: eng
text: We investigate the clustering and halo properties of ∼5000 Ly α-selected emission-line
galaxies (LAEs) from the Slicing COSMOS 4K (SC4K) and from archival NB497 imaging
of SA22 split in 15 discrete redshift slices between z ∼ 2.5 and 6. We measure
clustering lengths of r0 ∼ 3–6 h−1 Mpc and typical halo masses of ∼1011 M⊙ for
our narrowband-selected LAEs with typical LLy α ∼ 1042–43 erg s−1. The intermediate-band-selected
LAEs are observed to have r0 ∼ 3.5–15 h−1 Mpc with typical halo masses of ∼1011–12
M⊙ and typical LLy α ∼ 1043–43.6 erg s−1. We find a strong, redshift-independent
correlation between halo mass and Ly α luminosity normalized by the characteristic
Ly α luminosity, L⋆(z). The faintest LAEs (L ∼ 0.1 L⋆(z)) typically identified
by deep narrowband surveys are found in 1010 M⊙ haloes and the brightest LAEs
(L ∼ 7 L⋆(z)) are found in ∼5 × 1012 M⊙ haloes. A dependency on the rest-frame
1500 Å UV luminosity, MUV, is also observed where the halo masses increase from
1011 to 1013 M⊙ for MUV ∼ −19 to −23.5 mag. Halo mass is also observed to increase
from 109.8 to 1012 M⊙ for dust-corrected UV star formation rates from ∼0.6 to
10 M⊙ yr−1 and continues to increase up to 1013 M⊙ in halo mass, where the majority
of those sources are active galactic nuclei. All the trends we observe are found
to be redshift independent. Our results reveal that LAEs are the likely progenitors
of a wide range of galaxies depending on their luminosity, from dwarf-like, to
Milky Way-type, to bright cluster galaxies. LAEs therefore provide unique insight
into the early formation and evolution of the galaxies we observe in the local
Universe.
acknowledgement: We thank the anonymous referee for their useful comments and suggestions
that helped improve this study. AAK acknowledges that this work was supported by
NASA Headquarters under the NASA Earth and Space Science Fellowship Program – Grant
NNX16AO92H. JM acknowledges support from the ETH Zwicky fellowship. RKC acknowledges
funding from STFC via a studentship. APA acknowledges support from the Fundac¸ao
para a Ci ˜ encia e a Tecnologia FCT through the fellowship PD/BD/52706/2014 and
the research grant UID/FIS/04434/2013. JC and SS both acknowledge their support
from the Lancaster University PhD Fellowship. We have benefited greatly from the
publicly available programming language PYTHON, including the NUMPY, SCIPY, MATPLOTLIB,
SCIKIT-LEARN, and ASTROPY packages, as well as the TOPCAT analysis program. The
SC4K samples used in this paper are all publicly available for use by the community
(Sobral et al. 2018a). The catalogue is also available on the COSMOS IPAC website
(https://irsa.ipac.caltech.edu/data/COSMOS/overview.html).
article_processing_charge: No
article_type: original
author:
- first_name: A A
full_name: Khostovan, A A
last_name: Khostovan
- first_name: D
full_name: Sobral, D
last_name: Sobral
- first_name: B
full_name: Mobasher, B
last_name: Mobasher
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: R K
full_name: Cochrane, R K
last_name: Cochrane
- first_name: N
full_name: Chartab, N
last_name: Chartab
- first_name: M
full_name: Jafariyazani, M
last_name: Jafariyazani
- first_name: A
full_name: Paulino-Afonso, A
last_name: Paulino-Afonso
- first_name: S
full_name: Santos, S
last_name: Santos
- first_name: J
full_name: Calhau, J
last_name: Calhau
citation:
ama: 'Khostovan AA, Sobral D, Mobasher B, et al. The clustering of typical Ly α emitters
from z ∼ 2.5–6: Host halo masses depend on Ly α and UV luminosities. Monthly
Notices of the Royal Astronomical Society. 2019;489(1):555-573. doi:10.1093/mnras/stz2149'
apa: 'Khostovan, A. A., Sobral, D., Mobasher, B., Matthee, J. J., Cochrane, R. K.,
Chartab, N., … Calhau, J. (2019). The clustering of typical Ly α emitters from
z ∼ 2.5–6: Host halo masses depend on Ly α and UV luminosities. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stz2149'
chicago: 'Khostovan, A A, D Sobral, B Mobasher, Jorryt J Matthee, R K Cochrane,
N Chartab, M Jafariyazani, A Paulino-Afonso, S Santos, and J Calhau. “The Clustering
of Typical Ly α Emitters from z ∼ 2.5–6: Host Halo Masses Depend on Ly α and UV
Luminosities.” Monthly Notices of the Royal Astronomical Society. Oxford
University Press, 2019. https://doi.org/10.1093/mnras/stz2149.'
ieee: 'A. A. Khostovan et al., “The clustering of typical Ly α emitters from
z ∼ 2.5–6: Host halo masses depend on Ly α and UV luminosities,” Monthly Notices
of the Royal Astronomical Society, vol. 489, no. 1. Oxford University Press,
pp. 555–573, 2019.'
ista: 'Khostovan AA, Sobral D, Mobasher B, Matthee JJ, Cochrane RK, Chartab N, Jafariyazani
M, Paulino-Afonso A, Santos S, Calhau J. 2019. The clustering of typical Ly α emitters
from z ∼ 2.5–6: Host halo masses depend on Ly α and UV luminosities. Monthly Notices
of the Royal Astronomical Society. 489(1), 555–573.'
mla: 'Khostovan, A. A., et al. “The Clustering of Typical Ly α Emitters from z ∼
2.5–6: Host Halo Masses Depend on Ly α and UV Luminosities.” Monthly Notices
of the Royal Astronomical Society, vol. 489, no. 1, Oxford University Press,
2019, pp. 555–73, doi:10.1093/mnras/stz2149.'
short: A.A. Khostovan, D. Sobral, B. Mobasher, J.J. Matthee, R.K. Cochrane, N. Chartab,
M. Jafariyazani, A. Paulino-Afonso, S. Santos, J. Calhau, Monthly Notices of the
Royal Astronomical Society 489 (2019) 555–573.
date_created: 2022-07-07T13:01:03Z
date_published: 2019-10-01T00:00:00Z
date_updated: 2022-08-19T06:38:42Z
day: '01'
doi: 10.1093/mnras/stz2149
extern: '1'
external_id:
arxiv:
- '1811.00556'
intvolume: ' 489'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: haloes'
- 'galaxies: high-redshift'
- 'galaxies: star formation'
- 'cosmology: observations'
- large-scale structure of Universe
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1811.00556
month: '10'
oa: 1
oa_version: Preprint
page: 555-573
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The clustering of typical Ly α emitters from z ∼ 2.5–6: Host halo masses depend
on Ly α and UV luminosities'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 489
year: '2019'
...
---
_id: '11541'
abstract:
- lang: eng
text: We present new Hubble Space Telescope (HST)/WFC3 observations and re-analyse
VLT data to unveil the continuum, variability, and rest-frame ultraviolet (UV)
lines of the multiple UV clumps of the most luminous Lyα emitter at z = 6.6, CR7
(COSMOS Redshift 7). Our re-reduced, flux-calibrated X-SHOOTER spectra of CR7
reveal an He II emission line in observations obtained along the major axis of
Lyα emission with the best seeing conditions. He II is spatially offset by ≈+0.8
arcsec from the peak of Lyα emission, and it is found towards clump B. Our WFC3
grism spectra detects the UV continuum of CR7’s clump A, yielding a power law
with β=−2.5+0.6−0.7 and MUV=−21.87+0.25−0.20. No significant variability is found
for any of the UV clumps on their own, but there is tentative (≈2.2 σ) brightening
of CR7 in F110W as a whole from 2012 to 2017. HST grism data fail to robustly
detect rest-frame UV lines in any of the clumps, implying fluxes ≲2×10−17 erg s−1 cm−2
(3σ). We perform CLOUDY modelling to constrain the metallicity and the ionizing
nature of CR7. CR7 seems to be actively forming stars without any clear active
galactic nucleus activity in clump A, consistent with a metallicity of ∼0.05–0.2 Z⊙.
Component C or an interclump component between B and C may host a high ionization
source. Our results highlight the need for spatially resolved information to study
the formation and assembly of early galaxies.
acknowledgement: We thank the anonymous reviewer for the numerous detailed comments
that led us to greatly improve the quality, extent, and statistical robustness of
this work. DS acknowledges financial support from the Netherlands Organisation for
Scientific research through a Veni fellowship. JM acknowledges the support of a
Huygens PhD fellowship from Leiden University. AF acknowledges support from the
ERC Advanced Grant INTERSTELLAR H2020/740120. BD acknowledges financial support
from NASA through the Astrophysics Data Analysis Program, grant number NNX12AE20G
and the National Science Foundation, grant number 1716907. We are thankful for several
discussions and constructive comments from Johannes Zabl, Eros Vanzella, Bo Milvang-Jensen,
Henry McCracken, Max Gronke, Mark Dijkstra, Richard Ellis, and Nicolas Laporte.
We also thank Umar Burhanudin and Izzy Garland for taking part in the XGAL internship
in Lancaster and for exploring the HST grism data independently. Based on observations
obtained with HST/WFC3 programs 12578, 14495, and 14596. Based on observations of
the National Japanese Observatory with the Suprime-Cam on the Subaru telescope (S14A-086)
on the big island of Hawaii. This work is based in part on data products produced
at TERAPIX available at the Canadian Astronomy Data Centre as part of the Canada–France–Hawaii
Telescope Legacy Survey, a collaborative project of NRC and CNRS. Based on data
products from observations made with ESO Telescopes at the La Silla Paranal Observatory
under ESO programme IDs 294.A-5018, 294.A-5039, 092.A 0786, 093.A-0561, 097.A0043,
097.A-0943, 098.A-0819, 298.A-5012, and 179.A-2005, and on data products produced
by TERAPIX and the Cambridge Astronomy Survey Unit on behalf of the UltraVISTA consortium.
The authors acknowledge the award of service time (SW2014b20) on the William Herschel
Telescope (WHT). WHT and its service programme are operated on the island of La
Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de los Muchachos
of the Instituto de Astrofisica de Canarias. This research was supported by the
Munich Institute for Astro- and Particle Physics of the DFG cluster of excellence
‘Origin and Structure of the Universe’. We have benefitted immensely from the public
available programming language PYTHON, including NUMPY and SCIPY (Jones et al. 2001;
Van Der Walt, Colbert & Varoquaux 2011), MATPLOTLIB (Hunter 2007), ASTROPY (Astropy
Collaboration et al. 2013), and the TOPCAT analysis program (Taylor 2013). This
research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France.
All data used for this paper are publicly available, and we make all reduced data
available with the refereed paper.
article_processing_charge: No
article_type: original
author:
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Gabriel
full_name: Brammer, Gabriel
last_name: Brammer
- first_name: Andrea
full_name: Ferrara, Andrea
last_name: Ferrara
- first_name: Lara
full_name: Alegre, Lara
last_name: Alegre
- first_name: Huub
full_name: Röttgering, Huub
last_name: Röttgering
- first_name: Daniel
full_name: Schaerer, Daniel
last_name: Schaerer
- first_name: Bahram
full_name: Mobasher, Bahram
last_name: Mobasher
- first_name: Behnam
full_name: Darvish, Behnam
last_name: Darvish
citation:
ama: Sobral D, Matthee JJ, Brammer G, et al. On the nature and physical conditions
of the luminous Ly α emitter CR7 and its rest-frame UV components. Monthly
Notices of the Royal Astronomical Society. 2019;482(2):2422-2441. doi:10.1093/mnras/sty2779
apa: Sobral, D., Matthee, J. J., Brammer, G., Ferrara, A., Alegre, L., Röttgering,
H., … Darvish, B. (2019). On the nature and physical conditions of the luminous
Ly α emitter CR7 and its rest-frame UV components. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/sty2779
chicago: Sobral, David, Jorryt J Matthee, Gabriel Brammer, Andrea Ferrara, Lara
Alegre, Huub Röttgering, Daniel Schaerer, Bahram Mobasher, and Behnam Darvish.
“On the Nature and Physical Conditions of the Luminous Ly α Emitter CR7 and Its
Rest-Frame UV Components.” Monthly Notices of the Royal Astronomical Society.
Oxford University Press, 2019. https://doi.org/10.1093/mnras/sty2779.
ieee: D. Sobral et al., “On the nature and physical conditions of the luminous
Ly α emitter CR7 and its rest-frame UV components,” Monthly Notices of the
Royal Astronomical Society, vol. 482, no. 2. Oxford University Press, pp.
2422–2441, 2019.
ista: Sobral D, Matthee JJ, Brammer G, Ferrara A, Alegre L, Röttgering H, Schaerer
D, Mobasher B, Darvish B. 2019. On the nature and physical conditions of the luminous
Ly α emitter CR7 and its rest-frame UV components. Monthly Notices of the Royal
Astronomical Society. 482(2), 2422–2441.
mla: Sobral, David, et al. “On the Nature and Physical Conditions of the Luminous
Ly α Emitter CR7 and Its Rest-Frame UV Components.” Monthly Notices of the
Royal Astronomical Society, vol. 482, no. 2, Oxford University Press, 2019,
pp. 2422–41, doi:10.1093/mnras/sty2779.
short: D. Sobral, J.J. Matthee, G. Brammer, A. Ferrara, L. Alegre, H. Röttgering,
D. Schaerer, B. Mobasher, B. Darvish, Monthly Notices of the Royal Astronomical
Society 482 (2019) 2422–2441.
date_created: 2022-07-08T10:40:05Z
date_published: 2019-01-01T00:00:00Z
date_updated: 2022-08-19T06:49:36Z
day: '01'
doi: 10.1093/mnras/sty2779
extern: '1'
external_id:
arxiv:
- '1710.08422'
intvolume: ' 482'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- 'galaxies: ISM'
- 'cosmology: observations'
- dark ages
- reionization
- first stars
- early Universe
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1710.08422
month: '01'
oa: 1
oa_version: Preprint
page: 2422-2441
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the nature and physical conditions of the luminous Ly α emitter CR7 and
its rest-frame UV components
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 482
year: '2019'
...
---
_id: '11540'
abstract:
- lang: eng
text: Observations have revealed that the star formation rate (SFR) and stellar
mass (Mstar) of star-forming galaxies follow a tight relation known as the galaxy
main sequence. However, what physical information is encoded in this relation
is under debate. Here, we use the EAGLE cosmological hydrodynamical simulation
to study the mass dependence, evolution, and origin of scatter in the SFR–Mstar
relation. At z = 0, we find that the scatter decreases slightly with stellar mass
from 0.35 dex at Mstar ≈ 109 M⊙ to 0.30 dex at Mstar ≳ 1010.5 M⊙. The scatter
decreases from z = 0 to z = 5 by 0.05 dex at Mstar ≳ 1010 M⊙ and by 0.15 dex for
lower masses. We show that the scatter at z = 0.1 originates from a combination
of fluctuations on short time-scales (ranging from 0.2–2 Gyr) that are presumably
associated with self-regulation from cooling, star formation, and outflows, but
is dominated by long time-scale (∼10 Gyr) variations related to differences in
halo formation times. Shorter time-scale fluctuations are relatively more important
for lower mass galaxies. At high masses, differences in black hole formation efficiency
cause additional scatter, but also diminish the scatter caused by different halo
formation times. While individual galaxies cross the main sequence multiple times
during their evolution, they fluctuate around tracks associated with their halo
properties, i.e. galaxies above/below the main sequence at z = 0.1 tend to have
been above/below the main sequence for ≫1 Gyr.
acknowledgement: JM acknowledges the support of a Huygens PhD fellowship from Leiden
University. We thank Camila Correa for help analysing snipshot merger trees. We
thank the anonymous referee for constructive comments. We also thank Jarle Brinchmann,
Rob Crain, Antonios Katsianis, Paola Popesso, and David Sobral for discussions and
suggestions. We also thank the participants of the Lorentz Center workshop ‘A Decade
of the Star-Forming Main Sequence’ held on 2017 September 4–8, for discussions and
ideas. We have benefited from the public available programming language PYTHON,
including the NUMPY, MATPLOTLIB, and SCIPY (Hunter 2007) packages and the TOPCAT
analysis tool (Taylor 2013).
article_processing_charge: No
article_type: original
author:
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
citation:
ama: Matthee JJ, Schaye J. The origin of scatter in the star formation rate–stellar
mass relation. Monthly Notices of the Royal Astronomical Society. 2019;484(1):915-932.
doi:10.1093/mnras/stz030
apa: Matthee, J. J., & Schaye, J. (2019). The origin of scatter in the star
formation rate–stellar mass relation. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/stz030
chicago: Matthee, Jorryt J, and Joop Schaye. “The Origin of Scatter in the Star
Formation Rate–Stellar Mass Relation.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/stz030.
ieee: J. J. Matthee and J. Schaye, “The origin of scatter in the star formation
rate–stellar mass relation,” Monthly Notices of the Royal Astronomical Society,
vol. 484, no. 1. Oxford University Press, pp. 915–932, 2019.
ista: Matthee JJ, Schaye J. 2019. The origin of scatter in the star formation rate–stellar
mass relation. Monthly Notices of the Royal Astronomical Society. 484(1), 915–932.
mla: Matthee, Jorryt J., and Joop Schaye. “The Origin of Scatter in the Star Formation
Rate–Stellar Mass Relation.” Monthly Notices of the Royal Astronomical Society,
vol. 484, no. 1, Oxford University Press, 2019, pp. 915–32, doi:10.1093/mnras/stz030.
short: J.J. Matthee, J. Schaye, Monthly Notices of the Royal Astronomical Society
484 (2019) 915–932.
date_created: 2022-07-08T07:48:31Z
date_published: 2019-03-01T00:00:00Z
date_updated: 2022-08-19T06:42:43Z
day: '01'
doi: 10.1093/mnras/stz030
extern: '1'
external_id:
arxiv:
- '1805.05956'
intvolume: ' 484'
issue: '1'
keyword:
- Space and Planetary Science
- 'Astronomy and Astrophysics : galaxies: evolution'
- 'galaxies: formation'
- 'galaxies: star formation'
- 'cosmology: theory'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1805.05956
month: '03'
oa: 1
oa_version: Preprint
page: 915-932
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The origin of scatter in the star formation rate–stellar mass relation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 484
year: '2019'
...
---
_id: '11616'
abstract:
- lang: eng
text: We present the discovery of HD 221416 b, the first transiting planet identified
by the Transiting Exoplanet Survey Satellite (TESS) for which asteroseismology
of the host star is possible. HD 221416 b (HIP 116158, TOI-197) is a bright (V
= 8.2 mag), spectroscopically classified subgiant that oscillates with an average
frequency of about 430 μHz and displays a clear signature of mixed modes. The
oscillation amplitude confirms that the redder TESS bandpass compared to Kepler
has a small effect on the oscillations, supporting the expected yield of thousands
of solar-like oscillators with TESS 2 minute cadence observations. Asteroseismic
modeling yields a robust determination of the host star radius (R⋆ = 2.943 ± 0.064
R⊙), mass (M⋆ = 1.212 ± 0.074 M⊙), and age (4.9 ± 1.1 Gyr), and demonstrates that
it has just started ascending the red-giant branch. Combining asteroseismology
with transit modeling and radial-velocity observations, we show that the planet
is a "hot Saturn" (Rp = 9.17 ± 0.33 R⊕) with an orbital period of ∼14.3 days,
irradiance of F = 343 ± 24 F⊕, and moderate mass (Mp = 60.5 ± 5.7 M⊕) and density
(ρp = 0.431 ± 0.062 g cm−3). The properties of HD 221416 b show that the host-star
metallicity–planet mass correlation found in sub-Saturns (4–8 R⊕) does not extend
to larger radii, indicating that planets in the transition between sub-Saturns
and Jupiters follow a relatively narrow range of densities. With a density measured
to ∼15%, HD 221416 b is one of the best characterized Saturn-size planets to date,
augmenting the small number of known transiting planets around evolved stars and
demonstrating the power of TESS to characterize exoplanets and their host stars
using asteroseismology.
acknowledgement: "The authors wish to recognize and acknowledge the very significant
cultural role and reverence that the summit of Maunakea has always had within the
indigenous Hawai'ian community. We are most fortunate to have the opportunity to
conduct observations from this mountain. We thank Andrei Tokovinin for helpful information
on the Speckle observations obtained with SOAR. D.H. acknowledges support by the
National Aeronautics and Space Administration through the TESS Guest Investigator
Program (80NSSC18K1585) and by the National Science Foundation (AST-1717000). A.C.
acknowledges support by the National Science Foundation under the Graduate Research
Fellowship Program. W.J.C., W.H.B., A.M., O.J.H., and G.R.D. acknowledge support
from the Science and Technology Facilities Council and UK Space Agency. H.K. and
F.G. acknowledge support from the European Social Fund via the Lithuanian Science
Council grant No. 09.3.3-LMT-K-712-01-0103. Funding for the Stellar Astrophysics
Centre is provided by The Danish National Research Foundation (grant DNRF106). A.J.
acknowledges support from FONDECYT project 1171208, CONICYT project BASAL AFB-170002,
and by the Ministry for the Economy, Development, and Tourism's Programa Iniciativa
Científica Milenio through grant IC 120009, awarded to the Millennium Institute
of Astrophysics (MAS). R.B. acknowledges support from FONDECYT Post-doctoral Fellowship
Project 3180246, and from the Millennium Institute of Astrophysics (MAS). A.M.S.
is supported by grants ESP2017-82674-R (MINECO) and SGR2017-1131 (AGAUR). R.A.G.
and L.B. acknowledge the support of the PLATO grant from the CNES. The research
leading to the presented results has received funding from the European Research
Council under the European Community's Seventh Framework Programme (FP72007-2013)ERC
grant agreement No. 338251 (StellarAges). S.M. acknowledges support from the European
Research Council through the SPIRE grant 647383. This work was also supported by
FCT (Portugal) through national funds and by FEDER through COMPETE2020 by these
grants: UID/FIS/04434/2013 and POCI-01-0145-FEDER-007672, PTDC/FIS-AST/30389/2017,
and POCI-01-0145-FEDER-030389. T.L.C. acknowledges support from the European Union's
Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie
grant agreement No. 792848 (PULSATION). E.C. is funded by the European Union's Horizon
2020 research and innovation program under the Marie Sklodowska-Curie grant agreement
No. 664931. V.S.A. acknowledges support from the Independent Research Fund Denmark
(Research grant 7027-00096B). D.S. acknowledges support from the Australian Research
Council. S.B. acknowledges NASA grant NNX16AI09G and NSF grant AST-1514676. T.R.W.
acknowledges support from the Australian Research Council through grant DP150100250.
A.M. acknowledges support from the ERC Consolidator Grant funding scheme (project
ASTEROCHRONOMETRY, G.A. n. 772293). S.M. acknowledges support from the Ramon y Cajal
fellowship number RYC-2015-17697. M.S.L. is supported by the Carlsberg Foundation
(grant agreement No. CF17-0760). A.M. and P.R. acknowledge support from the HBCSE-NIUS
programme. J.K.T. and J.T. acknowledge that support for this work was provided by
NASA through Hubble Fellowship grants HST-HF2-51399.001 and HST-HF2-51424.001 awarded
by the Space Telescope Science Institute, which is operated by the Association of
Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555.
T.S.R. acknowledges financial support from Premiale 2015 MITiC (PI B. Garilli).
This project has been supported by the NKFIH K-115709 grant and the Lendület Program
of the Hungarian Academy of Sciences, project No. LP2018-7/2018.\r\n\r\nBased on
observations made with the Hertzsprung SONG telescope operated on the Spanish Observatorio
del Teide on the island of Tenerife by the Aarhus and Copenhagen Universities and
by the Instituto de Astrofísica de Canarias. Funding for the TESS mission is provided
by NASA's Science Mission directorate. We acknowledge the use of public TESS Alert
data from pipelines at the TESS Science Office and at the TESS Science Processing
Operations Center. This research has made use of the Exoplanet Follow-up Observation
Program website, which is operated by the California Institute of Technology, under
contract with the National Aeronautics and Space Administration under the Exoplanet
Exploration Program. This paper includes data collected by the TESS mission, which
are publicly available from the Mikulski Archive for Space Telescopes (MAST).\r\n\r\nSoftware:
Astropy (Astropy Collaboration et al. 2018), Matplotlib (Hunter 2007), DIAMONDS
(Corsaro & De Ridder 2014), isoclassify (Huber et al. 2017), EXOFASTv2 (Eastman
2017), ktransit (Barclay 2018)."
article_number: '245'
article_processing_charge: No
article_type: original
author:
- first_name: Daniel
full_name: Huber, Daniel
last_name: Huber
- first_name: William J.
full_name: Chaplin, William J.
last_name: Chaplin
- first_name: Ashley
full_name: Chontos, Ashley
last_name: Chontos
- first_name: Hans
full_name: Kjeldsen, Hans
last_name: Kjeldsen
- first_name: Jørgen
full_name: Christensen-Dalsgaard, Jørgen
last_name: Christensen-Dalsgaard
- first_name: Timothy R.
full_name: Bedding, Timothy R.
last_name: Bedding
- first_name: Warrick
full_name: Ball, Warrick
last_name: Ball
- first_name: Rafael
full_name: Brahm, Rafael
last_name: Brahm
- first_name: Nestor
full_name: Espinoza, Nestor
last_name: Espinoza
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full_name: Henning, Thomas
last_name: Henning
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full_name: Jordán, Andrés
last_name: Jordán
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full_name: Sarkis, Paula
last_name: Sarkis
- first_name: Emil
full_name: Knudstrup, Emil
last_name: Knudstrup
- first_name: Simon
full_name: Albrecht, Simon
last_name: Albrecht
- first_name: Frank
full_name: Grundahl, Frank
last_name: Grundahl
- first_name: Mads Fredslund
full_name: Andersen, Mads Fredslund
last_name: Andersen
- first_name: Pere L.
full_name: Pallé, Pere L.
last_name: Pallé
- first_name: Ian
full_name: Crossfield, Ian
last_name: Crossfield
- first_name: Benjamin
full_name: Fulton, Benjamin
last_name: Fulton
- first_name: Andrew W.
full_name: Howard, Andrew W.
last_name: Howard
- first_name: Howard T.
full_name: Isaacson, Howard T.
last_name: Isaacson
- first_name: Lauren M.
full_name: Weiss, Lauren M.
last_name: Weiss
- first_name: Rasmus
full_name: Handberg, Rasmus
last_name: Handberg
- first_name: Mikkel N.
full_name: Lund, Mikkel N.
last_name: Lund
- first_name: Aldo M.
full_name: Serenelli, Aldo M.
last_name: Serenelli
- first_name: Jakob
full_name: Rørsted Mosumgaard, Jakob
last_name: Rørsted Mosumgaard
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full_name: Stokholm, Amalie
last_name: Stokholm
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full_name: Bieryla, Allyson
last_name: Bieryla
- first_name: Lars A.
full_name: Buchhave, Lars A.
last_name: Buchhave
- first_name: David W.
full_name: Latham, David W.
last_name: Latham
- first_name: Samuel N.
full_name: Quinn, Samuel N.
last_name: Quinn
- first_name: Eric
full_name: Gaidos, Eric
last_name: Gaidos
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last_name: Hirano
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full_name: Ricker, George R.
last_name: Ricker
- first_name: Roland K.
full_name: Vanderspek, Roland K.
last_name: Vanderspek
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full_name: Seager, Sara
last_name: Seager
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last_name: Jenkins
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last_name: Winn
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full_name: Antia, H. M.
last_name: Antia
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last_name: Appourchaux
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full_name: Corsaro, Enrico
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citation:
ama: Huber D, Chaplin WJ, Chontos A, et al. A hot Saturn orbiting an oscillating
late subgiant discovered by TESS. The Astronomical Journal. 2019;157(6).
doi:10.3847/1538-3881/ab1488
apa: Huber, D., Chaplin, W. J., Chontos, A., Kjeldsen, H., Christensen-Dalsgaard,
J., Bedding, T. R., … Zohrabi, F. (2019). A hot Saturn orbiting an oscillating
late subgiant discovered by TESS. The Astronomical Journal. IOP Publishing.
https://doi.org/10.3847/1538-3881/ab1488
chicago: Huber, Daniel, William J. Chaplin, Ashley Chontos, Hans Kjeldsen, Jørgen
Christensen-Dalsgaard, Timothy R. Bedding, Warrick Ball, et al. “A Hot Saturn
Orbiting an Oscillating Late Subgiant Discovered by TESS.” The Astronomical
Journal. IOP Publishing, 2019. https://doi.org/10.3847/1538-3881/ab1488.
ieee: D. Huber et al., “A hot Saturn orbiting an oscillating late subgiant
discovered by TESS,” The Astronomical Journal, vol. 157, no. 6. IOP Publishing,
2019.
ista: Huber D et al. 2019. A hot Saturn orbiting an oscillating late subgiant discovered
by TESS. The Astronomical Journal. 157(6), 245.
mla: Huber, Daniel, et al. “A Hot Saturn Orbiting an Oscillating Late Subgiant Discovered
by TESS.” The Astronomical Journal, vol. 157, no. 6, 245, IOP Publishing,
2019, doi:10.3847/1538-3881/ab1488.
short: D. Huber, W.J. Chaplin, A. Chontos, H. Kjeldsen, J. Christensen-Dalsgaard,
T.R. Bedding, W. Ball, R. Brahm, N. Espinoza, T. Henning, A. Jordán, P. Sarkis,
E. Knudstrup, S. Albrecht, F. Grundahl, M.F. Andersen, P.L. Pallé, I. Crossfield,
B. Fulton, A.W. Howard, H.T. Isaacson, L.M. Weiss, R. Handberg, M.N. Lund, A.M.
Serenelli, J. Rørsted Mosumgaard, A. Stokholm, A. Bieryla, L.A. Buchhave, D.W.
Latham, S.N. Quinn, E. Gaidos, T. Hirano, G.R. Ricker, R.K. Vanderspek, S. Seager,
J.M. Jenkins, J.N. Winn, H.M. Antia, T. Appourchaux, S. Basu, K.J. Bell, O. Benomar,
A. Bonanno, D.L. Buzasi, T.L. Campante, Z. Çelik Orhan, E. Corsaro, M.S. Cunha,
G.R. Davies, S. Deheuvels, S.K. Grunblatt, A. Hasanzadeh, M.P. Di Mauro, R. A.
García, P. Gaulme, L. Girardi, J.A. Guzik, M. Hon, C. Jiang, T. Kallinger, S.D.
Kawaler, J.S. Kuszlewicz, Y. Lebreton, T. Li, M. Lucas, M.S. Lundkvist, A.W. Mann,
S. Mathis, S. Mathur, A. Mazumdar, T.S. Metcalfe, A. Miglio, M.J.P. F. G. Monteiro,
B. Mosser, A. Noll, B. Nsamba, J.M. Joel Ong, S. Örtel, F. Pereira, P. Ranadive,
C. Régulo, T.S. Rodrigues, I.W. Roxburgh, V.S. Aguirre, B. Smalley, M. Schofield,
S.G. Sousa, K.G. Stassun, D. Stello, J. Tayar, T.R. White, K. Verma, M. Vrard,
M. Yıldız, D. Baker, M. Bazot, C. Beichmann, C. Bergmann, L.A. Bugnet, B. Cale,
R. Carlino, S.M. Cartwright, J.L. Christiansen, D.R. Ciardi, O. Creevey, J.A.
Dittmann, J.-D.D. Nascimento, V.V. Eylen, G. Fürész, J. Gagné, P. Gao, K. Gazeas,
F. Giddens, O.J. Hall, S. Hekker, M.J. Ireland, N. Latouf, D. LeBrun, A.M. Levine,
W. Matzko, E. Natinsky, E. Page, P. Plavchan, M. Mansouri-Samani, S. McCauliff,
S.E. Mullally, B. Orenstein, A.G. Soto, M. Paegert, J.L. van Saders, C. Schnaible,
D.R. Soderblom, R. Szabó, A. Tanner, C.G. Tinney, J. Teske, A. Thomas, R. Trampedach,
D. Wright, T.T. Yuan, F. Zohrabi, The Astronomical Journal 157 (2019).
date_created: 2022-07-18T14:29:07Z
date_published: 2019-05-30T00:00:00Z
date_updated: 2022-08-22T07:38:34Z
day: '30'
doi: 10.3847/1538-3881/ab1488
extern: '1'
external_id:
arxiv:
- '1901.01643'
intvolume: ' 157'
issue: '6'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1901.01643
month: '05'
oa: 1
oa_version: Preprint
publication: The Astronomical Journal
publication_identifier:
issn:
- 0004-6256
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: A hot Saturn orbiting an oscillating late subgiant discovered by TESS
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 157
year: '2019'
...
---
_id: '11613'
abstract:
- lang: eng
text: Over 2,000 stars were observed for 1 month with a high enough cadence in order
to look for acoustic modes during the survey phase of the Kepler mission. Solar-like
oscillations have been detected in about 540 stars. The question of why no oscillations
were detected in the remaining stars is still open. Previous works explained the
non-detection of modes with the high level of magnetic activity of the stars.
However, the sample of stars studied contained some classical pulsators and red
giants that could have biased the results. In this work, we revisit this analysis
on a cleaner sample of main-sequence solar-like stars that consists of 1,014 stars.
First we compute the predicted amplitude of the modes of that sample and for the
stars with detected oscillation and compare it to the noise at high frequency
in the power spectrum. We find that the stars with detected modes have an amplitude
to noise ratio larger than 0.94. We measure reliable rotation periods and the
associated photometric magnetic index for 684 stars out of the full sample and
in particular for 323 stars where the amplitude of the modes is predicted to be
high enough to be detected. We find that among these 323 stars 32% of them have
a level of magnetic activity larger than the Sun during its maximum activity,
explaining the non-detection of acoustic modes. Interestingly, magnetic activity
cannot be the primary reason responsible for the absence of detectable modes in
the remaining 68% of the stars without acoustic modes detected and with reliable
rotation periods. Thus, we investigate metallicity, inclination angle of the rotation
axis, and binarity as possible causes of low mode amplitudes. Using spectroscopic
observations for a subsample, we find that a low metallicity could be the reason
for suppressed modes. No clear correlation with binarity nor inclination is found.
We also derive the lower limit for our photometric activity index (of 20–30 ppm)
below which rotation and magnetic activity are not detected. Finally, with our
analysis we conclude that stars with a photometric activity index larger than
2,000 ppm have 98.3% probability of not having oscillations detected.
acknowledgement: This paper includes data collected by the Kepler mission. Funding
for the Kepler mission is provided by the NASA Science Mission directorate. Some
of the data presented in this paper were obtained from the Mikulski Archive for
Space Telescopes (MAST). STScI is operated by the Association of Universities for
Research in Astronomy, Inc., under NASA contract NAS5-26555. Partly Based on observations
obtained with the HERMES spectrograph on the Mercator Telescope, which was supported
by the Research Foundation—Flanders (FWO), Belgium, the Research Council of KU Leuven,
Belgium, the Fonds National de la Recherche Scientifique (F.R.S.-FNRS), Belgium,
the Royal Observatory of Belgium, the Observatoire de Genève, Switzerland, and the
Thüringer Landessternwarte Tautenburg, Germany. SM acknowledges support by the National
Aeronautics and Space Administration under Grant NNX15AF13G, by the National Science
Foundation grant AST-1411685, and the Ramon y Cajal fellowship number RYC-2015-17697.
RG acknowledges the support from PLATO and GOLF CNES grants. ÂS acknowledges the
support from National Aeronautics and Space Administration under Grant NNX17AF27G.
PB acknowledges the support of the MINECO under the fellowship program Juan de la
Cierva Incorporacion (IJCI-2015-26034).
article_number: '46'
article_processing_charge: No
article_type: original
author:
- first_name: Savita
full_name: Mathur, Savita
last_name: Mathur
- first_name: Rafael A.
full_name: García, Rafael A.
last_name: García
- first_name: Lisa Annabelle
full_name: Bugnet, Lisa Annabelle
id: d9edb345-f866-11ec-9b37-d119b5234501
last_name: Bugnet
orcid: 0000-0003-0142-4000
- first_name: Ângela R.G.
full_name: Santos, Ângela R.G.
last_name: Santos
- first_name: Netsha
full_name: Santiago, Netsha
last_name: Santiago
- first_name: Paul G.
full_name: Beck, Paul G.
last_name: Beck
citation:
ama: Mathur S, García RA, Bugnet LA, Santos ÂRG, Santiago N, Beck PG. Revisiting
the impact of stellar magnetic activity on the detectability of solar-like oscillations
by Kepler. Frontiers in Astronomy and Space Sciences. 2019;6. doi:10.3389/fspas.2019.00046
apa: Mathur, S., García, R. A., Bugnet, L. A., Santos, Â. R. G., Santiago, N., &
Beck, P. G. (2019). Revisiting the impact of stellar magnetic activity on the
detectability of solar-like oscillations by Kepler. Frontiers in Astronomy
and Space Sciences. Frontiers Media. https://doi.org/10.3389/fspas.2019.00046
chicago: Mathur, Savita, Rafael A. García, Lisa Annabelle Bugnet, Ângela R.G. Santos,
Netsha Santiago, and Paul G. Beck. “Revisiting the Impact of Stellar Magnetic
Activity on the Detectability of Solar-like Oscillations by Kepler.” Frontiers
in Astronomy and Space Sciences. Frontiers Media, 2019. https://doi.org/10.3389/fspas.2019.00046.
ieee: S. Mathur, R. A. García, L. A. Bugnet, Â. R. G. Santos, N. Santiago, and P.
G. Beck, “Revisiting the impact of stellar magnetic activity on the detectability
of solar-like oscillations by Kepler,” Frontiers in Astronomy and Space Sciences,
vol. 6. Frontiers Media, 2019.
ista: Mathur S, García RA, Bugnet LA, Santos ÂRG, Santiago N, Beck PG. 2019. Revisiting
the impact of stellar magnetic activity on the detectability of solar-like oscillations
by Kepler. Frontiers in Astronomy and Space Sciences. 6, 46.
mla: Mathur, Savita, et al. “Revisiting the Impact of Stellar Magnetic Activity
on the Detectability of Solar-like Oscillations by Kepler.” Frontiers in Astronomy
and Space Sciences, vol. 6, 46, Frontiers Media, 2019, doi:10.3389/fspas.2019.00046.
short: S. Mathur, R.A. García, L.A. Bugnet, Â.R.G. Santos, N. Santiago, P.G. Beck,
Frontiers in Astronomy and Space Sciences 6 (2019).
date_created: 2022-07-18T14:00:36Z
date_published: 2019-07-10T00:00:00Z
date_updated: 2022-08-22T07:29:55Z
day: '10'
doi: 10.3389/fspas.2019.00046
extern: '1'
external_id:
arxiv:
- '1907.01415'
intvolume: ' 6'
keyword:
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1907.01415
month: '07'
oa: 1
oa_version: Preprint
publication: Frontiers in Astronomy and Space Sciences
publication_identifier:
eissn:
- 2296-987X
publication_status: published
publisher: Frontiers Media
quality_controlled: '1'
scopus_import: '1'
status: public
title: Revisiting the impact of stellar magnetic activity on the detectability of
solar-like oscillations by Kepler
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2019'
...
---
_id: '11615'
abstract:
- lang: eng
text: The recently published Kepler mission Data Release 25 (DR25) reported on ∼197 000
targets observed during the mission. Despite this, no wide search for red giants
showing solar-like oscillations have been made across all stars observed in Kepler’s
long-cadence mode. In this work, we perform this task using custom apertures on
the Kepler pixel files and detect oscillations in 21 914 stars, representing the
largest sample of solar-like oscillating stars to date. We measure their frequency
at maximum power, νmax, down to νmax≃4μHz and obtain log (g) estimates with a
typical uncertainty below 0.05 dex, which is superior to typical measurements
from spectroscopy. Additionally, the νmax distribution of our detections show
good agreement with results from a simulated model of the Milky Way, with a ratio
of observed to predicted stars of 0.992 for stars with 10<νmax<270μHz. Among our
red giant detections, we find 909 to be dwarf/subgiant stars whose flux signal
is polluted by a neighbouring giant as a result of using larger photometric apertures
than those used by the NASA Kepler science processing pipeline. We further find
that only 293 of the polluting giants are known Kepler targets. The remainder
comprises over 600 newly identified oscillating red giants, with many expected
to belong to the Galactic halo, serendipitously falling within the Kepler pixel
files of targeted stars.
acknowledgement: Funding for this Discovery mission is provided by NASA’s Science
mission Directorate. We thank the entire Kepler team without whom this investigation
would not be possible. DS is the recipient of an Australian Research Council Future
Fellowship (project number FT1400147). RAG acknowledges the support from CNES. SM
acknowledges support from NASA grant NNX15AF13G, NSF grant AST-1411685, and the
Ramon y Cajal fellowship number RYC-2015-17697. ILC acknowledges scholarship support
from the University of Sydney. We would like to thank Nicholas Barbara and Timothy
Bedding for providing us with a list of variable stars that helped to validate a
number of detections in this study. We also thank the group at the University of
Sydney for fruitful discussions. Finally, we gratefully acknowledge the support
of NVIDIA Corporation with the donation of the Titan Xp GPU used for this research.
article_processing_charge: No
article_type: original
author:
- first_name: Marc
full_name: Hon, Marc
last_name: Hon
- first_name: Dennis
full_name: Stello, Dennis
last_name: Stello
- first_name: Rafael A
full_name: García, Rafael A
last_name: García
- first_name: Savita
full_name: Mathur, Savita
last_name: Mathur
- first_name: Sanjib
full_name: Sharma, Sanjib
last_name: Sharma
- first_name: Isabel L
full_name: Colman, Isabel L
last_name: Colman
- first_name: Lisa Annabelle
full_name: Bugnet, Lisa Annabelle
id: d9edb345-f866-11ec-9b37-d119b5234501
last_name: Bugnet
orcid: 0000-0003-0142-4000
citation:
ama: Hon M, Stello D, García RA, et al. A search for red giant solar-like oscillations
in all Kepler data. Monthly Notices of the Royal Astronomical Society.
2019;485(4):5616-5630. doi:10.1093/mnras/stz622
apa: Hon, M., Stello, D., García, R. A., Mathur, S., Sharma, S., Colman, I. L.,
& Bugnet, L. A. (2019). A search for red giant solar-like oscillations in
all Kepler data. Monthly Notices of the Royal Astronomical Society. Oxford
University Press. https://doi.org/10.1093/mnras/stz622
chicago: Hon, Marc, Dennis Stello, Rafael A García, Savita Mathur, Sanjib Sharma,
Isabel L Colman, and Lisa Annabelle Bugnet. “A Search for Red Giant Solar-like
Oscillations in All Kepler Data.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2019. https://doi.org/10.1093/mnras/stz622.
ieee: M. Hon et al., “A search for red giant solar-like oscillations in all
Kepler data,” Monthly Notices of the Royal Astronomical Society, vol. 485,
no. 4. Oxford University Press, pp. 5616–5630, 2019.
ista: Hon M, Stello D, García RA, Mathur S, Sharma S, Colman IL, Bugnet LA. 2019.
A search for red giant solar-like oscillations in all Kepler data. Monthly Notices
of the Royal Astronomical Society. 485(4), 5616–5630.
mla: Hon, Marc, et al. “A Search for Red Giant Solar-like Oscillations in All Kepler
Data.” Monthly Notices of the Royal Astronomical Society, vol. 485, no.
4, Oxford University Press, 2019, pp. 5616–30, doi:10.1093/mnras/stz622.
short: M. Hon, D. Stello, R.A. García, S. Mathur, S. Sharma, I.L. Colman, L.A. Bugnet,
Monthly Notices of the Royal Astronomical Society 485 (2019) 5616–5630.
date_created: 2022-07-18T14:26:03Z
date_published: 2019-06-01T00:00:00Z
date_updated: 2022-08-22T07:35:19Z
day: '01'
doi: 10.1093/mnras/stz622
extern: '1'
external_id:
arxiv:
- '1903.00115'
intvolume: ' 485'
issue: '4'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- asteroseismology
- 'methods: data analysis'
- 'techniques: image processing'
- 'stars: oscillations'
- 'stars: statistics'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1903.00115
month: '06'
oa: 1
oa_version: Preprint
page: 5616-5630
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: A search for red giant solar-like oscillations in all Kepler data
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 485
year: '2019'
...
---
_id: '11614'
abstract:
- lang: eng
text: The NASA Transiting Exoplanet Survey Satellite (TESS) is about to provide
full-frame images of almost the entire sky. The amount of stellar data to be analysed
represents hundreds of millions stars, which is several orders of magnitude more
than the number of stars observed by the Convection, Rotation and planetary Transits
satellite (CoRoT), and NASA Kepler and K2 missions. We aim at automatically classifying
the newly observed stars with near real-time algorithms to better guide the subsequent
detailed studies. In this paper, we present a classification algorithm built to
recognise solar-like pulsators among classical pulsators. This algorithm relies
on the global amount of power contained in the power spectral density (PSD), also
known as the flicker in spectral power density (FliPer). Because each type of
pulsating star has a characteristic background or pulsation pattern, the shape
of the PSD at different frequencies can be used to characterise the type of pulsating
star. The FliPer classifier (FliPerClass) uses different FliPer parameters along
with the effective temperature as input parameters to feed a ML algorithm in order
to automatically classify the pulsating stars observed by TESS. Using noisy TESS-simulated
data from the TESS Asteroseismic Science Consortium (TASC), we classify pulsators
with a 98% accuracy. Among them, solar-like pulsating stars are recognised with
a 99% accuracy, which is of great interest for a further seismic analysis of these
stars, which are like our Sun. Similar results are obtained when we trained our
classifier and applied it to 27-day subsets of real Kepler data. FliPerClass is
part of the large TASC classification pipeline developed by the TESS Data for
Asteroseismology (T’DA) classification working group.
acknowledgement: We thank the enitre T’DA team for useful comments and discussions,
in particular Andrew Tkachenko. We also acknowledge Marc Hon, Keaton Bell, and James
Kuszlewicz for useful comments on the manuscript. L.B. and R.A.G. acknowledge the
support from PLATO and GOLF CNES grants. S.M. acknowledges support by the Ramon
y Cajal fellowship number RYC-2015-17697. O.J.H. and B.M.R. acknowledge the support
of the UK Science and Technology Facilities Council (STFC). M.N.L. acknowledges
the support of the ESA PRODEX programme (PEA 4000119301). Funding for the Stellar
Astrophysics Centre is provided by the Danish National Research Foundation (Grant
DNRF106).
article_number: A79
article_processing_charge: No
article_type: original
author:
- first_name: Lisa Annabelle
full_name: Bugnet, Lisa Annabelle
id: d9edb345-f866-11ec-9b37-d119b5234501
last_name: Bugnet
orcid: 0000-0003-0142-4000
- first_name: R. A.
full_name: García, R. A.
last_name: García
- first_name: S.
full_name: Mathur, S.
last_name: Mathur
- first_name: G. R.
full_name: Davies, G. R.
last_name: Davies
- first_name: O. J.
full_name: Hall, O. J.
last_name: Hall
- first_name: M. N.
full_name: Lund, M. N.
last_name: Lund
- first_name: B. M.
full_name: Rendle, B. M.
last_name: Rendle
citation:
ama: 'Bugnet LA, García RA, Mathur S, et al. FliPerClass: In search of solar-like
pulsators among TESS targets. Astronomy & Astrophysics. 2019;624. doi:10.1051/0004-6361/201834780'
apa: 'Bugnet, L. A., García, R. A., Mathur, S., Davies, G. R., Hall, O. J., Lund,
M. N., & Rendle, B. M. (2019). FliPerClass: In search of solar-like pulsators
among TESS targets. Astronomy & Astrophysics. EDP Science. https://doi.org/10.1051/0004-6361/201834780'
chicago: 'Bugnet, Lisa Annabelle, R. A. García, S. Mathur, G. R. Davies, O. J. Hall,
M. N. Lund, and B. M. Rendle. “FliPerClass: In Search of Solar-like Pulsators
among TESS Targets.” Astronomy & Astrophysics. EDP Science, 2019. https://doi.org/10.1051/0004-6361/201834780.'
ieee: 'L. A. Bugnet et al., “FliPerClass: In search of solar-like pulsators
among TESS targets,” Astronomy & Astrophysics, vol. 624. EDP Science,
2019.'
ista: 'Bugnet LA, García RA, Mathur S, Davies GR, Hall OJ, Lund MN, Rendle BM. 2019.
FliPerClass: In search of solar-like pulsators among TESS targets. Astronomy &
Astrophysics. 624, A79.'
mla: 'Bugnet, Lisa Annabelle, et al. “FliPerClass: In Search of Solar-like Pulsators
among TESS Targets.” Astronomy & Astrophysics, vol. 624, A79, EDP Science,
2019, doi:10.1051/0004-6361/201834780.'
short: L.A. Bugnet, R.A. García, S. Mathur, G.R. Davies, O.J. Hall, M.N. Lund, B.M.
Rendle, Astronomy & Astrophysics 624 (2019).
date_created: 2022-07-18T14:13:34Z
date_published: 2019-04-19T00:00:00Z
date_updated: 2022-08-22T07:32:51Z
day: '19'
doi: 10.1051/0004-6361/201834780
extern: '1'
external_id:
arxiv:
- '1902.09854'
intvolume: ' 624'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1902.09854
month: '04'
oa: 1
oa_version: Preprint
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'FliPerClass: In search of solar-like pulsators among TESS targets'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 624
year: '2019'
...