The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr
We investigate the change in mean stellar population age and metallicity ([Z/H]) scaling relations for quiescent galaxies from intermediate redshift ($0.60\leq z\leq0.76$) using the LEGA-C Survey, to low redshift ($0.014\leq z\leq0.10$) using the SAMI Galaxy Survey. We find that, similarly to their...
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Online Access: | https://eprints.lancs.ac.uk/id/eprint/167219/ https://eprints.lancs.ac.uk/id/eprint/167219/1/2107.01054v1.pdf https://doi.org/10.1093/mnras/stac705 |
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ftulancaster:oai:eprints.lancs.ac.uk:167219 2023-08-27T04:11:46+02:00 The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr Barone, Tania M. D'Eugenio, Francesco Scott, Nicholas Colless, Matthew Vaughan, Sam P. Wel, Arjen van der Fraser-McKelvie, Amelia Graaff, Anna de Sande, Jesse van de Wu, Po-Feng Bezanson, Rachel Brough, Sarah Bell, Eric Croom, Scott M. Cortese, Luca Driver, Simon Gallazzi, Anna R. Muzzin, Adam Sobral, David Bland-Hawthorn, Joss Bryant, Julia J. Goodwin, Michael Lawrence, Jon S. Lorente, Nuria P. F. Owers, Matt S. 2022-05-31 text https://eprints.lancs.ac.uk/id/eprint/167219/ https://eprints.lancs.ac.uk/id/eprint/167219/1/2107.01054v1.pdf https://doi.org/10.1093/mnras/stac705 en eng https://eprints.lancs.ac.uk/id/eprint/167219/1/2107.01054v1.pdf Barone, Tania M. and D'Eugenio, Francesco and Scott, Nicholas and Colless, Matthew and Vaughan, Sam P. and Wel, Arjen van der and Fraser-McKelvie, Amelia and Graaff, Anna de and Sande, Jesse van de and Wu, Po-Feng and Bezanson, Rachel and Brough, Sarah and Bell, Eric and Croom, Scott M. and Cortese, Luca and Driver, Simon and Gallazzi, Anna R. and Muzzin, Adam and Sobral, David and Bland-Hawthorn, Joss and Bryant, Julia J. and Goodwin, Michael and Lawrence, Jon S. and Lorente, Nuria P. F. and Owers, Matt S. (2022) The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr. Monthly Notices of the Royal Astronomical Society, 512 (3). pp. 3828-3845. ISSN 0035-8711 creative_commons_attribution_noncommercial_4_0_international_license Journal Article PeerReviewed 2022 ftulancaster https://doi.org/10.1093/mnras/stac705 2023-08-03T22:41:09Z We investigate the change in mean stellar population age and metallicity ([Z/H]) scaling relations for quiescent galaxies from intermediate redshift ($0.60\leq z\leq0.76$) using the LEGA-C Survey, to low redshift ($0.014\leq z\leq0.10$) using the SAMI Galaxy Survey. We find that, similarly to their low-redshift counterparts, the stellar metallicity of quiescent galaxies at $0.60\leq z\leq 0.76$ closely correlates with $M_*/R_\mathrm{e}$ (a proxy for the gravitational potential or escape velocity), in that galaxies with deeper potential wells are more metal-rich. This supports the hypothesis that the relation arises due to the gravitational potential regulating the retention of metals, by determining the escape velocity required by metal-rich stellar and supernova ejecta to escape the system and avoid being recycled into later stellar generations. On the other hand, we find no correlation between stellar age and $M_*/R_\mathrm{e}^2$ (stellar mass surface density $\Sigma$) in the LEGA-C sample, despite this being a strong relation at low redshift. We consider this change in the age--$\Sigma$ relation in the context of the redshift evolution of the star-forming and quiescent populations in the mass--size plane, and find our results can be explained as a consequence of galaxies forming more compactly at higher redshifts, and remaining compact throughout their evolution. Furthermore, galaxies appear to quench at a characteristic surface density that decreases with decreasing redshift. The $z\sim 0$ age--$\Sigma$ relation is therefore a result of building up the quiescent and star-forming populations with galaxies that formed at a range of redshifts and so a range of surface densities. Article in Journal/Newspaper sami Lancaster University: Lancaster Eprints Monthly Notices of the Royal Astronomical Society 512 3 3828 3845 |
institution |
Open Polar |
collection |
Lancaster University: Lancaster Eprints |
op_collection_id |
ftulancaster |
language |
English |
description |
We investigate the change in mean stellar population age and metallicity ([Z/H]) scaling relations for quiescent galaxies from intermediate redshift ($0.60\leq z\leq0.76$) using the LEGA-C Survey, to low redshift ($0.014\leq z\leq0.10$) using the SAMI Galaxy Survey. We find that, similarly to their low-redshift counterparts, the stellar metallicity of quiescent galaxies at $0.60\leq z\leq 0.76$ closely correlates with $M_*/R_\mathrm{e}$ (a proxy for the gravitational potential or escape velocity), in that galaxies with deeper potential wells are more metal-rich. This supports the hypothesis that the relation arises due to the gravitational potential regulating the retention of metals, by determining the escape velocity required by metal-rich stellar and supernova ejecta to escape the system and avoid being recycled into later stellar generations. On the other hand, we find no correlation between stellar age and $M_*/R_\mathrm{e}^2$ (stellar mass surface density $\Sigma$) in the LEGA-C sample, despite this being a strong relation at low redshift. We consider this change in the age--$\Sigma$ relation in the context of the redshift evolution of the star-forming and quiescent populations in the mass--size plane, and find our results can be explained as a consequence of galaxies forming more compactly at higher redshifts, and remaining compact throughout their evolution. Furthermore, galaxies appear to quench at a characteristic surface density that decreases with decreasing redshift. The $z\sim 0$ age--$\Sigma$ relation is therefore a result of building up the quiescent and star-forming populations with galaxies that formed at a range of redshifts and so a range of surface densities. |
format |
Article in Journal/Newspaper |
author |
Barone, Tania M. D'Eugenio, Francesco Scott, Nicholas Colless, Matthew Vaughan, Sam P. Wel, Arjen van der Fraser-McKelvie, Amelia Graaff, Anna de Sande, Jesse van de Wu, Po-Feng Bezanson, Rachel Brough, Sarah Bell, Eric Croom, Scott M. Cortese, Luca Driver, Simon Gallazzi, Anna R. Muzzin, Adam Sobral, David Bland-Hawthorn, Joss Bryant, Julia J. Goodwin, Michael Lawrence, Jon S. Lorente, Nuria P. F. Owers, Matt S. |
spellingShingle |
Barone, Tania M. D'Eugenio, Francesco Scott, Nicholas Colless, Matthew Vaughan, Sam P. Wel, Arjen van der Fraser-McKelvie, Amelia Graaff, Anna de Sande, Jesse van de Wu, Po-Feng Bezanson, Rachel Brough, Sarah Bell, Eric Croom, Scott M. Cortese, Luca Driver, Simon Gallazzi, Anna R. Muzzin, Adam Sobral, David Bland-Hawthorn, Joss Bryant, Julia J. Goodwin, Michael Lawrence, Jon S. Lorente, Nuria P. F. Owers, Matt S. The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr |
author_facet |
Barone, Tania M. D'Eugenio, Francesco Scott, Nicholas Colless, Matthew Vaughan, Sam P. Wel, Arjen van der Fraser-McKelvie, Amelia Graaff, Anna de Sande, Jesse van de Wu, Po-Feng Bezanson, Rachel Brough, Sarah Bell, Eric Croom, Scott M. Cortese, Luca Driver, Simon Gallazzi, Anna R. Muzzin, Adam Sobral, David Bland-Hawthorn, Joss Bryant, Julia J. Goodwin, Michael Lawrence, Jon S. Lorente, Nuria P. F. Owers, Matt S. |
author_sort |
Barone, Tania M. |
title |
The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr |
title_short |
The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr |
title_full |
The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr |
title_fullStr |
The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr |
title_full_unstemmed |
The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr |
title_sort |
lega-c and sami galaxy surveys:quiescent stellar populations and the mass-size plane across 6 gyr |
publishDate |
2022 |
url |
https://eprints.lancs.ac.uk/id/eprint/167219/ https://eprints.lancs.ac.uk/id/eprint/167219/1/2107.01054v1.pdf https://doi.org/10.1093/mnras/stac705 |
genre |
sami |
genre_facet |
sami |
op_relation |
https://eprints.lancs.ac.uk/id/eprint/167219/1/2107.01054v1.pdf Barone, Tania M. and D'Eugenio, Francesco and Scott, Nicholas and Colless, Matthew and Vaughan, Sam P. and Wel, Arjen van der and Fraser-McKelvie, Amelia and Graaff, Anna de and Sande, Jesse van de and Wu, Po-Feng and Bezanson, Rachel and Brough, Sarah and Bell, Eric and Croom, Scott M. and Cortese, Luca and Driver, Simon and Gallazzi, Anna R. and Muzzin, Adam and Sobral, David and Bland-Hawthorn, Joss and Bryant, Julia J. and Goodwin, Michael and Lawrence, Jon S. and Lorente, Nuria P. F. and Owers, Matt S. (2022) The LEGA-C and SAMI Galaxy Surveys:Quiescent Stellar Populations and the Mass-Size Plane across 6 Gyr. Monthly Notices of the Royal Astronomical Society, 512 (3). pp. 3828-3845. ISSN 0035-8711 |
op_rights |
creative_commons_attribution_noncommercial_4_0_international_license |
op_doi |
https://doi.org/10.1093/mnras/stac705 |
container_title |
Monthly Notices of the Royal Astronomical Society |
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512 |
container_issue |
3 |
container_start_page |
3828 |
op_container_end_page |
3845 |
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1775354893606846464 |