Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations ...
We study environmental quenching in the Eagle}/C-Eagle cosmological hydrodynamic simulations over the last 11 Gyr (i.e. $z=0-2$). The simulations are compared with observations from the SAMI Galaxy Survey at $z=0$. We focus on satellite galaxies in galaxy groups and clusters ($10^{12}\,\rm M_{\odot}...
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Online Access: | https://dx.doi.org/10.48550/arxiv.2302.10534 https://arxiv.org/abs/2302.10534 |
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ftdatacite:10.48550/arxiv.2302.10534 2023-07-23T04:21:36+02:00 Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations ... Wang, Di Lagos, Claudia D. P. Croom, Scott M. Wright, Ruby J. Bahé, Yannick M. Bryant, Julia J. van de Sande, Jesse Vaughan, Sam P. 2023 https://dx.doi.org/10.48550/arxiv.2302.10534 https://arxiv.org/abs/2302.10534 unknown arXiv https://dx.doi.org/10.1093/mnras/stad1864 Creative Commons Attribution Non Commercial Share Alike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode cc-by-nc-sa-4.0 Astrophysics of Galaxies astro-ph.GA FOS Physical sciences Text article-journal ScholarlyArticle Article 2023 ftdatacite https://doi.org/10.48550/arxiv.2302.1053410.1093/mnras/stad1864 2023-07-03T21:30:54Z We study environmental quenching in the Eagle}/C-Eagle cosmological hydrodynamic simulations over the last 11 Gyr (i.e. $z=0-2$). The simulations are compared with observations from the SAMI Galaxy Survey at $z=0$. We focus on satellite galaxies in galaxy groups and clusters ($10^{12}\,\rm M_{\odot}$ $\lesssim$ $M_{200}$ < $3 \times 10^{15}\, \rm M_{\odot}$). A star-formation concentration index [$C$-index $= \log_{10}(r_\mathrm{50,SFR} / r_\mathrm{50,rband})$] is defined, which measures how concentrated star formation is relative to the stellar distribution. Both Eagle/C-Eagle and SAMI show a higher fraction of galaxies with low $C$-index in denser environments at $z=0-0.5$. Low $C$-index galaxies are found below the SFR-$M_{\star}$ main sequence (MS), and display a declining specific star formation rate (sSFR) with increasing radii, consistent with ``outside-in'' environmental quenching. Additionally, we show that $C$-index can be used as a proxy for how long galaxies have been satellites. These trends ... : 21 pages, 17 figures, ... Text sami DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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topic |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
spellingShingle |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences Wang, Di Lagos, Claudia D. P. Croom, Scott M. Wright, Ruby J. Bahé, Yannick M. Bryant, Julia J. van de Sande, Jesse Vaughan, Sam P. Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations ... |
topic_facet |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
description |
We study environmental quenching in the Eagle}/C-Eagle cosmological hydrodynamic simulations over the last 11 Gyr (i.e. $z=0-2$). The simulations are compared with observations from the SAMI Galaxy Survey at $z=0$. We focus on satellite galaxies in galaxy groups and clusters ($10^{12}\,\rm M_{\odot}$ $\lesssim$ $M_{200}$ < $3 \times 10^{15}\, \rm M_{\odot}$). A star-formation concentration index [$C$-index $= \log_{10}(r_\mathrm{50,SFR} / r_\mathrm{50,rband})$] is defined, which measures how concentrated star formation is relative to the stellar distribution. Both Eagle/C-Eagle and SAMI show a higher fraction of galaxies with low $C$-index in denser environments at $z=0-0.5$. Low $C$-index galaxies are found below the SFR-$M_{\star}$ main sequence (MS), and display a declining specific star formation rate (sSFR) with increasing radii, consistent with ``outside-in'' environmental quenching. Additionally, we show that $C$-index can be used as a proxy for how long galaxies have been satellites. These trends ... : 21 pages, 17 figures, ... |
format |
Text |
author |
Wang, Di Lagos, Claudia D. P. Croom, Scott M. Wright, Ruby J. Bahé, Yannick M. Bryant, Julia J. van de Sande, Jesse Vaughan, Sam P. |
author_facet |
Wang, Di Lagos, Claudia D. P. Croom, Scott M. Wright, Ruby J. Bahé, Yannick M. Bryant, Julia J. van de Sande, Jesse Vaughan, Sam P. |
author_sort |
Wang, Di |
title |
Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations ... |
title_short |
Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations ... |
title_full |
Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations ... |
title_fullStr |
Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations ... |
title_full_unstemmed |
Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations ... |
title_sort |
star formation concentration as a tracer of environmental quenching in action: a study of the eagle and c-eagle simulations ... |
publisher |
arXiv |
publishDate |
2023 |
url |
https://dx.doi.org/10.48550/arxiv.2302.10534 https://arxiv.org/abs/2302.10534 |
genre |
sami |
genre_facet |
sami |
op_relation |
https://dx.doi.org/10.1093/mnras/stad1864 |
op_rights |
Creative Commons Attribution Non Commercial Share Alike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode cc-by-nc-sa-4.0 |
op_doi |
https://doi.org/10.48550/arxiv.2302.1053410.1093/mnras/stad1864 |
_version_ |
1772187438496612352 |