--- _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 - first_name: Thomas full_name: Henning, Thomas last_name: Henning - first_name: Andrés full_name: Jordán, Andrés last_name: Jordán - first_name: Paula 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 - first_name: Amalie full_name: Stokholm, Amalie last_name: Stokholm - first_name: Allyson 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 - first_name: Teruyuki full_name: Hirano, Teruyuki last_name: Hirano - first_name: George R. full_name: Ricker, George R. last_name: Ricker - first_name: Roland K. full_name: Vanderspek, Roland K. last_name: Vanderspek - first_name: Sara full_name: Seager, Sara last_name: Seager - first_name: Jon M. full_name: Jenkins, Jon M. last_name: Jenkins - first_name: Joshua N. full_name: Winn, Joshua N. last_name: Winn - first_name: H. M. full_name: Antia, H. M. last_name: Antia - first_name: Thierry full_name: Appourchaux, Thierry last_name: Appourchaux - first_name: Sarbani full_name: Basu, Sarbani last_name: Basu - first_name: Keaton J. full_name: Bell, Keaton J. last_name: Bell - first_name: Othman full_name: Benomar, Othman last_name: Benomar - first_name: Alfio full_name: Bonanno, Alfio last_name: Bonanno - first_name: Derek L. full_name: Buzasi, Derek L. last_name: Buzasi - first_name: Tiago L. full_name: Campante, Tiago L. last_name: Campante - first_name: Z. full_name: Çelik Orhan, Z. last_name: Çelik Orhan - first_name: Enrico full_name: Corsaro, Enrico last_name: Corsaro - first_name: Margarida S. full_name: Cunha, Margarida S. last_name: Cunha - first_name: Guy R. full_name: Davies, Guy R. last_name: Davies - first_name: Sebastien full_name: Deheuvels, Sebastien last_name: Deheuvels - first_name: Samuel K. full_name: Grunblatt, Samuel K. last_name: Grunblatt - first_name: Amir full_name: Hasanzadeh, Amir last_name: Hasanzadeh - first_name: Maria Pia full_name: Di Mauro, Maria Pia last_name: Di Mauro - first_name: Rafael full_name: A. García, Rafael last_name: A. García - first_name: Patrick full_name: Gaulme, Patrick last_name: Gaulme - first_name: Léo full_name: Girardi, Léo last_name: Girardi - first_name: Joyce A. full_name: Guzik, Joyce A. last_name: Guzik - first_name: Marc full_name: Hon, Marc last_name: Hon - first_name: Chen full_name: Jiang, Chen last_name: Jiang - first_name: Thomas full_name: Kallinger, Thomas last_name: Kallinger - first_name: Steven D. full_name: Kawaler, Steven D. last_name: Kawaler - first_name: James S. full_name: Kuszlewicz, James S. last_name: Kuszlewicz - first_name: Yveline full_name: Lebreton, Yveline last_name: Lebreton - first_name: Tanda full_name: Li, Tanda last_name: Li - first_name: Miles full_name: Lucas, Miles last_name: Lucas - first_name: Mia S. full_name: Lundkvist, Mia S. last_name: Lundkvist - first_name: Andrew W. full_name: Mann, Andrew W. last_name: Mann - first_name: Stéphane full_name: Mathis, Stéphane last_name: Mathis - first_name: Savita full_name: Mathur, Savita last_name: Mathur - first_name: Anwesh full_name: Mazumdar, Anwesh last_name: Mazumdar - first_name: Travis S. full_name: Metcalfe, Travis S. last_name: Metcalfe - first_name: Andrea full_name: Miglio, Andrea last_name: Miglio - first_name: Mário J. P. full_name: F. G. Monteiro, Mário J. P. last_name: F. G. Monteiro - first_name: Benoit full_name: Mosser, Benoit last_name: Mosser - first_name: Anthony full_name: Noll, Anthony last_name: Noll - first_name: Benard full_name: Nsamba, Benard last_name: Nsamba - first_name: Jia Mian full_name: Joel Ong, Jia Mian last_name: Joel Ong - first_name: S. full_name: Örtel, S. last_name: Örtel - first_name: Filipe full_name: Pereira, Filipe last_name: Pereira - first_name: Pritesh full_name: Ranadive, Pritesh last_name: Ranadive - first_name: Clara full_name: Régulo, Clara last_name: Régulo - first_name: Thaíse S. full_name: Rodrigues, Thaíse S. last_name: Rodrigues - first_name: Ian W. full_name: Roxburgh, Ian W. last_name: Roxburgh - first_name: Victor Silva full_name: Aguirre, Victor Silva last_name: Aguirre - first_name: Barry full_name: Smalley, Barry last_name: Smalley - first_name: Mathew full_name: Schofield, Mathew last_name: Schofield - first_name: Sérgio G. full_name: Sousa, Sérgio G. last_name: Sousa - first_name: Keivan G. full_name: Stassun, Keivan G. last_name: Stassun - first_name: Dennis full_name: Stello, Dennis last_name: Stello - first_name: Jamie full_name: Tayar, Jamie last_name: Tayar - first_name: Timothy R. full_name: White, Timothy R. last_name: White - first_name: Kuldeep full_name: Verma, Kuldeep last_name: Verma - first_name: Mathieu full_name: Vrard, Mathieu last_name: Vrard - first_name: M. full_name: Yıldız, M. last_name: Yıldız - first_name: David full_name: Baker, David last_name: Baker - first_name: Michaël full_name: Bazot, Michaël last_name: Bazot - first_name: Charles full_name: Beichmann, Charles last_name: Beichmann - first_name: Christoph full_name: Bergmann, Christoph last_name: Bergmann - 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: Bryson full_name: Cale, Bryson last_name: Cale - first_name: Roberto full_name: Carlino, Roberto last_name: Carlino - first_name: Scott M. full_name: Cartwright, Scott M. last_name: Cartwright - first_name: Jessie L. full_name: Christiansen, Jessie L. last_name: Christiansen - first_name: David R. full_name: Ciardi, David R. last_name: Ciardi - first_name: Orlagh full_name: Creevey, Orlagh last_name: Creevey - first_name: Jason A. full_name: Dittmann, Jason A. last_name: Dittmann - first_name: Jose-Dias Do full_name: Nascimento, Jose-Dias Do last_name: Nascimento - first_name: Vincent Van full_name: Eylen, Vincent Van last_name: Eylen - first_name: Gabor full_name: Fürész, Gabor last_name: Fürész - first_name: Jonathan full_name: Gagné, Jonathan last_name: Gagné - first_name: Peter full_name: Gao, Peter last_name: Gao - first_name: Kosmas full_name: Gazeas, Kosmas last_name: Gazeas - first_name: Frank full_name: Giddens, Frank last_name: Giddens - first_name: Oliver J. full_name: Hall, Oliver J. last_name: Hall - first_name: Saskia full_name: Hekker, Saskia last_name: Hekker - first_name: Michael J. full_name: Ireland, Michael J. last_name: Ireland - first_name: Natasha full_name: Latouf, Natasha last_name: Latouf - first_name: Danny full_name: LeBrun, Danny last_name: LeBrun - first_name: Alan M. full_name: Levine, Alan M. last_name: Levine - first_name: William full_name: Matzko, William last_name: Matzko - first_name: Eva full_name: Natinsky, Eva last_name: Natinsky - first_name: Emma full_name: Page, Emma last_name: Page - first_name: Peter full_name: Plavchan, Peter last_name: Plavchan - first_name: Masoud full_name: Mansouri-Samani, Masoud last_name: Mansouri-Samani - first_name: Sean full_name: McCauliff, Sean last_name: McCauliff - first_name: Susan E. full_name: Mullally, Susan E. last_name: Mullally - first_name: Brendan full_name: Orenstein, Brendan last_name: Orenstein - first_name: Aylin Garcia full_name: Soto, Aylin Garcia last_name: Soto - first_name: Martin full_name: Paegert, Martin last_name: Paegert - first_name: Jennifer L. full_name: van Saders, Jennifer L. last_name: van Saders - first_name: Chloe full_name: Schnaible, Chloe last_name: Schnaible - first_name: David R. full_name: Soderblom, David R. last_name: Soderblom - first_name: Róbert full_name: Szabó, Róbert last_name: Szabó - first_name: Angelle full_name: Tanner, Angelle last_name: Tanner - first_name: C. G. full_name: Tinney, C. G. last_name: Tinney - first_name: Johanna full_name: Teske, Johanna last_name: Teske - first_name: Alexandra full_name: Thomas, Alexandra last_name: Thomas - first_name: Regner full_name: Trampedach, Regner last_name: Trampedach - first_name: Duncan full_name: Wright, Duncan last_name: Wright - first_name: Thomas T. full_name: Yuan, Thomas T. last_name: Yuan - first_name: Farzaneh full_name: Zohrabi, Farzaneh last_name: Zohrabi 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' ...