---
_id: '10619'
abstract:
- lang: eng
text: The quantum anomalous Hall (QAH) effect combines topology and magnetism to
produce precisely quantized Hall resistance at zero magnetic field. We report
the observation of a QAH effect in twisted bilayer graphene aligned to hexagonal
boron nitride. The effect is driven by intrinsic strong interactions, which polarize
the electrons into a single spin- and valley-resolved moiré miniband with Chern
number C = 1. In contrast to magnetically doped systems, the measured transport
energy gap is larger than the Curie temperature for magnetic ordering, and quantization
to within 0.1% of the von Klitzing constant persists to temperatures of several
kelvin at zero magnetic field. Electrical currents as small as 1 nanoampere controllably
switch the magnetic order between states of opposite polarization, forming an
electrically rewritable magnetic memory.
acknowledgement: The authors acknowledge discussions with A. Macdonald, Y. Saito,
and M. Zaletel.
article_processing_charge: No
article_type: original
author:
- first_name: M.
full_name: Serlin, M.
last_name: Serlin
- first_name: C. L.
full_name: Tschirhart, C. L.
last_name: Tschirhart
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: Y.
full_name: Zhang, Y.
last_name: Zhang
- first_name: J.
full_name: Zhu, J.
last_name: Zhu
- first_name: K.
full_name: Watanabe, K.
last_name: Watanabe
- first_name: T.
full_name: Taniguchi, T.
last_name: Taniguchi
- first_name: L.
full_name: Balents, L.
last_name: Balents
- first_name: A. F.
full_name: Young, A. F.
last_name: Young
citation:
ama: Serlin M, Tschirhart CL, Polshyn H, et al. Intrinsic quantized anomalous Hall
effect in a moiré heterostructure. Science. 2019;367(6480):900-903. doi:10.1126/science.aay5533
apa: Serlin, M., Tschirhart, C. L., Polshyn, H., Zhang, Y., Zhu, J., Watanabe, K.,
… Young, A. F. (2019). Intrinsic quantized anomalous Hall effect in a moiré heterostructure.
Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.aay5533
chicago: Serlin, M., C. L. Tschirhart, Hryhoriy Polshyn, Y. Zhang, J. Zhu, K. Watanabe,
T. Taniguchi, L. Balents, and A. F. Young. “Intrinsic Quantized Anomalous Hall
Effect in a Moiré Heterostructure.” Science. American Association for the
Advancement of Science, 2019. https://doi.org/10.1126/science.aay5533.
ieee: M. Serlin et al., “Intrinsic quantized anomalous Hall effect in a moiré
heterostructure,” Science, vol. 367, no. 6480. American Association for
the Advancement of Science, pp. 900–903, 2019.
ista: Serlin M, Tschirhart CL, Polshyn H, Zhang Y, Zhu J, Watanabe K, Taniguchi
T, Balents L, Young AF. 2019. Intrinsic quantized anomalous Hall effect in a moiré
heterostructure. Science. 367(6480), 900–903.
mla: Serlin, M., et al. “Intrinsic Quantized Anomalous Hall Effect in a Moiré Heterostructure.”
Science, vol. 367, no. 6480, American Association for the Advancement of
Science, 2019, pp. 900–03, doi:10.1126/science.aay5533.
short: M. Serlin, C.L. Tschirhart, H. Polshyn, Y. Zhang, J. Zhu, K. Watanabe, T.
Taniguchi, L. Balents, A.F. Young, Science 367 (2019) 900–903.
date_created: 2022-01-13T14:21:32Z
date_published: 2019-12-19T00:00:00Z
date_updated: 2023-02-21T16:00:09Z
day: '19'
doi: 10.1126/science.aay5533
extern: '1'
external_id:
arxiv:
- '1907.00261'
pmid:
- '31857492'
intvolume: ' 367'
issue: '6480'
keyword:
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1907.00261
month: '12'
oa: 1
oa_version: Preprint
page: 900-903
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
related_material:
record:
- id: '10697'
relation: other
status: public
- id: '10698'
relation: other
status: public
- id: '10699'
relation: other
status: public
scopus_import: '1'
status: public
title: Intrinsic quantized anomalous Hall effect in a moiré heterostructure
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 367
year: '2019'
...
---
_id: '10724'
abstract:
- lang: eng
text: Twisted bilayer graphene (tBLG) near the flat band condition is a versatile
new platform for the study of correlated physics in 2D. Resistive states have
been observed at several commensurate fillings of the flat miniband, along with
superconducting states near half filling. To better understand the electronic
structure of this system, we study electronic transport of graphite gated superconducting
tBLG devices in the normal regime. At high magnetic fields, we observe full lifting
of the spin and valley degeneracy. The transitions in the splitting of this four-fold
degeneracy as a function of carrier density indicate Landau level (LL) crossings,
which tilted field measurements show occur between LLs with different valley polarization.
Similar LL structure measured in two devices, one with twist angle θ=1.08° at
ambient pressure and one at θ=1.27° and 1.33GPa, suggests that the dimensionless
combination of twist angle and interlayer coupling controls the relevant details
of the band structure. In addition, we find that the temperature dependence of
the resistance at B=0 shows linear growth at several hundred Ohm/K in a broad
range of temperatures. We discuss the implications for modeling the scattering
processes in this system.
alternative_title:
- Bulletin of the American Physical Society
article_number: V14.00008
article_processing_charge: No
author:
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: Yuxuan
full_name: Zhang, Yuxuan
last_name: Zhang
- first_name: Matthew
full_name: Yankowitz, Matthew
last_name: Yankowitz
- first_name: Shaowen
full_name: Chen, Shaowen
last_name: Chen
- first_name: Takashi
full_name: Taniguchi, Takashi
last_name: Taniguchi
- first_name: Kenji
full_name: Watanabe, Kenji
last_name: Watanabe
- first_name: David E.
full_name: Graf, David E.
last_name: Graf
- first_name: Cory R.
full_name: Dean, Cory R.
last_name: Dean
- first_name: Andrea
full_name: Young, Andrea
last_name: Young
citation:
ama: 'Polshyn H, Zhang Y, Yankowitz M, et al. Normal state transport in superconducting
twisted bilayer graphene. In: APS March Meeting 2019. Vol 64. American
Physical Society; 2019.'
apa: 'Polshyn, H., Zhang, Y., Yankowitz, M., Chen, S., Taniguchi, T., Watanabe,
K., … Young, A. (2019). Normal state transport in superconducting twisted bilayer
graphene. In APS March Meeting 2019 (Vol. 64). Boston, MA, United States:
American Physical Society.'
chicago: Polshyn, Hryhoriy, Yuxuan Zhang, Matthew Yankowitz, Shaowen Chen, Takashi
Taniguchi, Kenji Watanabe, David E. Graf, Cory R. Dean, and Andrea Young. “Normal
State Transport in Superconducting Twisted Bilayer Graphene.” In APS March
Meeting 2019, Vol. 64. American Physical Society, 2019.
ieee: H. Polshyn et al., “Normal state transport in superconducting twisted
bilayer graphene,” in APS March Meeting 2019, Boston, MA, United States,
2019, vol. 64, no. 2.
ista: 'Polshyn H, Zhang Y, Yankowitz M, Chen S, Taniguchi T, Watanabe K, Graf DE,
Dean CR, Young A. 2019. Normal state transport in superconducting twisted bilayer
graphene. APS March Meeting 2019. APS: American Physical Society, Bulletin of
the American Physical Society, vol. 64, V14.00008.'
mla: Polshyn, Hryhoriy, et al. “Normal State Transport in Superconducting Twisted
Bilayer Graphene.” APS March Meeting 2019, vol. 64, no. 2, V14.00008, American
Physical Society, 2019.
short: H. Polshyn, Y. Zhang, M. Yankowitz, S. Chen, T. Taniguchi, K. Watanabe, D.E.
Graf, C.R. Dean, 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: 2022-02-04T12:25:04Z
date_published: 2019-03-01T00:00:00Z
date_updated: 2022-02-08T10:23:13Z
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/V14.8
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: Normal state transport in superconducting twisted bilayer graphene
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 64
year: '2019'
...
---
_id: '10722'
abstract:
- lang: eng
text: Bilayer graphene, rotationally faulted to ~1.1 degree misalignment, has recently
been shown to host superconducting and resistive states associated with the formation
of a flat electronic band. While numerous theories exist for the origins of both
states, direct validation of these theories remains an outstanding experimental
problem. Here, we focus on the resistive states occurring at commensurate filling
(1/2, 1/4, and 3/4) of the two lowest superlattice bands. We test theoretical
proposals that these states arise due to broken spin—and/or valley—symmetry by
performing direct magnetic imaging with nanoscale SQUID-on-tip microscopy. This
technique provides single-spin resolved magnetometry on sub-100nm length scales.
I will present imaging data from our 4.2K nSOT microscope on graphite-gated twisted
bilayers near the flat band condition and discuss the implications for the physics
of the commensurate resistive states.
alternative_title:
- Bulletin of the American Physical Society
article_number: L14.00006
article_processing_charge: No
author:
- first_name: Marec
full_name: Serlin, Marec
last_name: Serlin
- first_name: Charles
full_name: Tschirhart, Charles
last_name: Tschirhart
- first_name: Hryhoriy
full_name: Polshyn, Hryhoriy
id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48
last_name: Polshyn
orcid: 0000-0001-8223-8896
- first_name: Jiacheng
full_name: Zhu, Jiacheng
last_name: Zhu
- first_name: Martin E.
full_name: Huber, Martin E.
last_name: Huber
- first_name: Andrea
full_name: Young, Andrea
last_name: Young
citation:
ama: 'Serlin M, Tschirhart C, Polshyn H, Zhu J, Huber ME, Young A. Direct Imaging
of magnetic structure in twisted bilayer graphene with scanning nanoSQUID-On-Tip
microscopy. In: APS March Meeting 2019. Vol 64. American Physical Society;
2019.'
apa: 'Serlin, M., Tschirhart, C., Polshyn, H., Zhu, J., Huber, M. E., & Young,
A. (2019). Direct Imaging of magnetic structure in twisted bilayer graphene with
scanning nanoSQUID-On-Tip microscopy. In APS March Meeting 2019 (Vol. 64).
Boston, MA, United States: American Physical Society.'
chicago: Serlin, Marec, Charles Tschirhart, Hryhoriy Polshyn, Jiacheng Zhu, Martin
E. Huber, and Andrea Young. “Direct Imaging of Magnetic Structure in Twisted Bilayer
Graphene with Scanning NanoSQUID-On-Tip Microscopy.” In APS March Meeting 2019,
Vol. 64. American Physical Society, 2019.
ieee: M. Serlin, C. Tschirhart, H. Polshyn, J. Zhu, M. E. Huber, and A. Young, “Direct
Imaging of magnetic structure in twisted bilayer graphene with scanning nanoSQUID-On-Tip
microscopy,” in APS March Meeting 2019, Boston, MA, United States, 2019,
vol. 64, no. 2.
ista: 'Serlin M, Tschirhart C, Polshyn H, Zhu J, Huber ME, Young A. 2019. Direct
Imaging of magnetic structure in twisted bilayer graphene with scanning nanoSQUID-On-Tip
microscopy. APS March Meeting 2019. APS: American Physical Society, Bulletin of
the American Physical Society, vol. 64, L14.00006.'
mla: Serlin, Marec, et al. “Direct Imaging of Magnetic Structure in Twisted Bilayer
Graphene with Scanning NanoSQUID-On-Tip Microscopy.” APS March Meeting 2019,
vol. 64, no. 2, L14.00006, American Physical Society, 2019.
short: M. Serlin, C. Tschirhart, H. Polshyn, J. Zhu, M.E. Huber, 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: 2022-02-04T11:54:21Z
date_published: 2019-03-01T00:00:00Z
date_updated: 2022-02-08T10:25:30Z
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/L14.6
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: Direct Imaging of magnetic structure in twisted bilayer graphene with scanning
nanoSQUID-On-Tip microscopy
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 64
year: '2019'
...
---
_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: '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'
...