The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics
ABSTRACT The kinematic morphology–density relation of galaxies is normally attributed to a changing distribution of galaxy stellar masses with the local environment. However, earlier studies were largely focused on slow rotators; the dynamical properties of the overall population in relation to envi...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Oxford University Press (OUP)
2021
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Online Access: | http://dx.doi.org/10.1093/mnras/stab2647 http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stab2647/40390500/stab2647.pdf https://academic.oup.com/mnras/article-pdf/508/2/2307/40566860/stab2647.pdf |
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croxfordunivpr:10.1093/mnras/stab2647 2024-09-15T18:33:25+00:00 The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics van de Sande, Jesse Croom, Scott M Bland-Hawthorn, Joss Cortese, Luca Scott, Nicholas Lagos, Claudia D P D’Eugenio, Francesco Bryant, Julia J Brough, Sarah Catinella, Barbara Foster, Caroline Groves, Brent Harborne, Katherine E López-Sánchez, Ángel R McDermid, Richard Medling, Anne Owers, Matt S Richards, Samuel N Sweet, Sarah M Vaughan, Sam P ARC Australian Research Council STFC AAO 2021 http://dx.doi.org/10.1093/mnras/stab2647 http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stab2647/40390500/stab2647.pdf https://academic.oup.com/mnras/article-pdf/508/2/2307/40566860/stab2647.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Monthly Notices of the Royal Astronomical Society volume 508, issue 2, page 2307-2328 ISSN 0035-8711 1365-2966 journal-article 2021 croxfordunivpr https://doi.org/10.1093/mnras/stab2647 2024-08-27T04:13:55Z ABSTRACT The kinematic morphology–density relation of galaxies is normally attributed to a changing distribution of galaxy stellar masses with the local environment. However, earlier studies were largely focused on slow rotators; the dynamical properties of the overall population in relation to environment have received less attention. We use the SAMI Galaxy Survey to investigate the dynamical properties of ∼1800 early and late-type galaxies with log (M⋆/M⊙) > 9.5 as a function of mean environmental overdensity (Σ5) and their rank within a group or cluster. By classifying galaxies into fast and slow rotators, at fixed stellar mass above log (M⋆/M⊙) > 10.5, we detect a higher fraction (∼3.4σ) of slow rotators for group and cluster centrals and satellites as compared to isolated-central galaxies. We find similar results when using Σ5 as a tracer for environment. Focusing on the fast-rotator population, we also detect a significant correlation between galaxy kinematics and their stellar mass as well as the environment they are in. Specifically, by using inclination-corrected or intrinsic $\lambda _{R_{\rm {e}}}$ values, we find that, at fixed mass, satellite galaxies on average have the lowest $\lambda _{\, R_{\rm {e}},\rm {intr}}$, isolated-central galaxies have the highest $\lambda _{\, R_{\rm {e}},\rm {intr}}$, and group and cluster centrals lie in between. Similarly, galaxies in high-density environments have lower mean $\lambda _{\, R_{\rm {e}},\rm {intr}}$ values as compared to galaxies at low environmental density. However, at fixed Σ5, the mean $\lambda _{\, R_{\rm {e}},\rm {intr}}$ differences for low and high-mass galaxies are of similar magnitude as when varying Σ5 ($\Delta \lambda _{\, R_{\rm {e}},\rm {intr}} \sim 0.05$, with σrandom = 0.025, and σsyst < 0.03). Our results demonstrate that after stellar mass, environment plays a significant role in the creation of slow rotators, while for fast rotators we also detect an independent, albeit smaller, impact of mass and environment on ... Article in Journal/Newspaper sami Oxford University Press Monthly Notices of the Royal Astronomical Society |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
ABSTRACT The kinematic morphology–density relation of galaxies is normally attributed to a changing distribution of galaxy stellar masses with the local environment. However, earlier studies were largely focused on slow rotators; the dynamical properties of the overall population in relation to environment have received less attention. We use the SAMI Galaxy Survey to investigate the dynamical properties of ∼1800 early and late-type galaxies with log (M⋆/M⊙) > 9.5 as a function of mean environmental overdensity (Σ5) and their rank within a group or cluster. By classifying galaxies into fast and slow rotators, at fixed stellar mass above log (M⋆/M⊙) > 10.5, we detect a higher fraction (∼3.4σ) of slow rotators for group and cluster centrals and satellites as compared to isolated-central galaxies. We find similar results when using Σ5 as a tracer for environment. Focusing on the fast-rotator population, we also detect a significant correlation between galaxy kinematics and their stellar mass as well as the environment they are in. Specifically, by using inclination-corrected or intrinsic $\lambda _{R_{\rm {e}}}$ values, we find that, at fixed mass, satellite galaxies on average have the lowest $\lambda _{\, R_{\rm {e}},\rm {intr}}$, isolated-central galaxies have the highest $\lambda _{\, R_{\rm {e}},\rm {intr}}$, and group and cluster centrals lie in between. Similarly, galaxies in high-density environments have lower mean $\lambda _{\, R_{\rm {e}},\rm {intr}}$ values as compared to galaxies at low environmental density. However, at fixed Σ5, the mean $\lambda _{\, R_{\rm {e}},\rm {intr}}$ differences for low and high-mass galaxies are of similar magnitude as when varying Σ5 ($\Delta \lambda _{\, R_{\rm {e}},\rm {intr}} \sim 0.05$, with σrandom = 0.025, and σsyst < 0.03). Our results demonstrate that after stellar mass, environment plays a significant role in the creation of slow rotators, while for fast rotators we also detect an independent, albeit smaller, impact of mass and environment on ... |
author2 |
ARC Australian Research Council STFC AAO |
format |
Article in Journal/Newspaper |
author |
van de Sande, Jesse Croom, Scott M Bland-Hawthorn, Joss Cortese, Luca Scott, Nicholas Lagos, Claudia D P D’Eugenio, Francesco Bryant, Julia J Brough, Sarah Catinella, Barbara Foster, Caroline Groves, Brent Harborne, Katherine E López-Sánchez, Ángel R McDermid, Richard Medling, Anne Owers, Matt S Richards, Samuel N Sweet, Sarah M Vaughan, Sam P |
spellingShingle |
van de Sande, Jesse Croom, Scott M Bland-Hawthorn, Joss Cortese, Luca Scott, Nicholas Lagos, Claudia D P D’Eugenio, Francesco Bryant, Julia J Brough, Sarah Catinella, Barbara Foster, Caroline Groves, Brent Harborne, Katherine E López-Sánchez, Ángel R McDermid, Richard Medling, Anne Owers, Matt S Richards, Samuel N Sweet, Sarah M Vaughan, Sam P The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics |
author_facet |
van de Sande, Jesse Croom, Scott M Bland-Hawthorn, Joss Cortese, Luca Scott, Nicholas Lagos, Claudia D P D’Eugenio, Francesco Bryant, Julia J Brough, Sarah Catinella, Barbara Foster, Caroline Groves, Brent Harborne, Katherine E López-Sánchez, Ángel R McDermid, Richard Medling, Anne Owers, Matt S Richards, Samuel N Sweet, Sarah M Vaughan, Sam P |
author_sort |
van de Sande, Jesse |
title |
The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics |
title_short |
The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics |
title_full |
The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics |
title_fullStr |
The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics |
title_full_unstemmed |
The SAMI galaxy survey: Mass and environment as independent drivers of galaxy dynamics |
title_sort |
sami galaxy survey: mass and environment as independent drivers of galaxy dynamics |
publisher |
Oxford University Press (OUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1093/mnras/stab2647 http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stab2647/40390500/stab2647.pdf https://academic.oup.com/mnras/article-pdf/508/2/2307/40566860/stab2647.pdf |
genre |
sami |
genre_facet |
sami |
op_source |
Monthly Notices of the Royal Astronomical Society volume 508, issue 2, page 2307-2328 ISSN 0035-8711 1365-2966 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/mnras/stab2647 |
container_title |
Monthly Notices of the Royal Astronomical Society |
_version_ |
1810475129631670272 |