The SAMI galaxy survey : stellar population and structural trends across the Fundamental Plane
We study the Fundamental Plane (FP) for a volume- and luminosity-limited sample of 560 early-type galaxies from the SAMI survey. Using r-band sizes and luminosities from new multi-Gaussian expansion photometric measurements, and treating luminosity as the dependent variable, the FP has coefficients...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Online Access: | https://biblio.ugent.be/publication/8723931 http://hdl.handle.net/1854/LU-8723931 https://doi.org/10.1093/mnras/stab1146 https://biblio.ugent.be/publication/8723931/file/8758096 |
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ftunivgent:oai:archive.ugent.be:8723931 2023-06-11T04:16:22+02:00 The SAMI galaxy survey : stellar population and structural trends across the Fundamental Plane D'Eugenio, Francesco Colless, Matthew Scott, Nicholas van der Wel, Arjen Davies, Roger L van de Sande, Jesse Sweet, Sarah M Oh, Sree Groves, Brent Sharp, Rob Owers, Matt S Bland-Hawthorn, Joss Croom, Scott M Brough, Sarah Bryant, Julia J Goodwin, Michael Lawrence, Jon S Lorente, Nuria P F Richards, Samuel N 2021 application/pdf https://biblio.ugent.be/publication/8723931 http://hdl.handle.net/1854/LU-8723931 https://doi.org/10.1093/mnras/stab1146 https://biblio.ugent.be/publication/8723931/file/8758096 eng eng https://biblio.ugent.be/publication/8723931 http://hdl.handle.net/1854/LU-8723931 http://dx.doi.org/10.1093/mnras/stab1146 https://biblio.ugent.be/publication/8723931/file/8758096 No license (in copyright) info:eu-repo/semantics/openAccess MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY ISSN: 0035-8711 ISSN: 1365-2966 Physics and Astronomy Space and Planetary Science Astronomy and Astrophysics galaxies: elliptical and lenticular cD galaxies: evolution galaxies: formation galaxies: spiral galaxies: stellar content MASS ASSEMBLY GAMA DIGITAL SKY SURVEY SPATIALLY-RESOLVED SPECTROSCOPY MULTI-GAUSSIAN EXPANSION STAR-FORMATION HISTORIES ABSORPTION-LINE SPECTRA TO-LIGHT RATIO DATA RELEASE ATLAS(3D) PROJECT QUIESCENT GALAXIES journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftunivgent https://doi.org/10.1093/mnras/stab1146 2023-05-10T22:48:37Z We study the Fundamental Plane (FP) for a volume- and luminosity-limited sample of 560 early-type galaxies from the SAMI survey. Using r-band sizes and luminosities from new multi-Gaussian expansion photometric measurements, and treating luminosity as the dependent variable, the FP has coefficients a = 1.294 +/- 0.039, b = 0.912 +/- 0.025, and zero-point c = 7.067 +/- 0.078. We leverage the high signal-to-noise ratio of SAMI integral field spectroscopy, to determine how structural and stellar population observables affect the scatter about the FP. The FP residuals correlate most strongly (8 sigma significance) with luminosity-weighted simple stellar population (SSP) age. In contrast, the structural observables surface mass density, rotationto-dispersion ratio, Sdrsic index, and projected shape all show little or no significant correlation. We connect the FP residuals to the empirical relation between age (or stellar mass-to-light ratio Upsilon(*)) and surface mass density, the best predictor of SSP age amongst parameters based on FP observables. We show that the FP residuals (anti)correlate with the residuals of the relation between surface density and Upsilon(*). This correlation implies that part of the FP scatter is due to the broad age and Upsilon(*) distribution at any given surface mass density. Using virial mass and Upsilon(*), we construct a simulated FP and compare it to the observed FP. We find that, while the empirical relations between observed stellar population relations and FP observables are responsible for most (75 per cent) of the FP scatter, on their own they do not explain the observed tilt of the FP away from the virial plane. Article in Journal/Newspaper sami Ghent University Academic Bibliography Zero Point ENVELOPE(-37.150,-37.150,-54.117,-54.117) Monthly Notices of the Royal Astronomical Society 504 4 5098 5130 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Physics and Astronomy Space and Planetary Science Astronomy and Astrophysics galaxies: elliptical and lenticular cD galaxies: evolution galaxies: formation galaxies: spiral galaxies: stellar content MASS ASSEMBLY GAMA DIGITAL SKY SURVEY SPATIALLY-RESOLVED SPECTROSCOPY MULTI-GAUSSIAN EXPANSION STAR-FORMATION HISTORIES ABSORPTION-LINE SPECTRA TO-LIGHT RATIO DATA RELEASE ATLAS(3D) PROJECT QUIESCENT GALAXIES |
spellingShingle |
Physics and Astronomy Space and Planetary Science Astronomy and Astrophysics galaxies: elliptical and lenticular cD galaxies: evolution galaxies: formation galaxies: spiral galaxies: stellar content MASS ASSEMBLY GAMA DIGITAL SKY SURVEY SPATIALLY-RESOLVED SPECTROSCOPY MULTI-GAUSSIAN EXPANSION STAR-FORMATION HISTORIES ABSORPTION-LINE SPECTRA TO-LIGHT RATIO DATA RELEASE ATLAS(3D) PROJECT QUIESCENT GALAXIES D'Eugenio, Francesco Colless, Matthew Scott, Nicholas van der Wel, Arjen Davies, Roger L van de Sande, Jesse Sweet, Sarah M Oh, Sree Groves, Brent Sharp, Rob Owers, Matt S Bland-Hawthorn, Joss Croom, Scott M Brough, Sarah Bryant, Julia J Goodwin, Michael Lawrence, Jon S Lorente, Nuria P F Richards, Samuel N The SAMI galaxy survey : stellar population and structural trends across the Fundamental Plane |
topic_facet |
Physics and Astronomy Space and Planetary Science Astronomy and Astrophysics galaxies: elliptical and lenticular cD galaxies: evolution galaxies: formation galaxies: spiral galaxies: stellar content MASS ASSEMBLY GAMA DIGITAL SKY SURVEY SPATIALLY-RESOLVED SPECTROSCOPY MULTI-GAUSSIAN EXPANSION STAR-FORMATION HISTORIES ABSORPTION-LINE SPECTRA TO-LIGHT RATIO DATA RELEASE ATLAS(3D) PROJECT QUIESCENT GALAXIES |
description |
We study the Fundamental Plane (FP) for a volume- and luminosity-limited sample of 560 early-type galaxies from the SAMI survey. Using r-band sizes and luminosities from new multi-Gaussian expansion photometric measurements, and treating luminosity as the dependent variable, the FP has coefficients a = 1.294 +/- 0.039, b = 0.912 +/- 0.025, and zero-point c = 7.067 +/- 0.078. We leverage the high signal-to-noise ratio of SAMI integral field spectroscopy, to determine how structural and stellar population observables affect the scatter about the FP. The FP residuals correlate most strongly (8 sigma significance) with luminosity-weighted simple stellar population (SSP) age. In contrast, the structural observables surface mass density, rotationto-dispersion ratio, Sdrsic index, and projected shape all show little or no significant correlation. We connect the FP residuals to the empirical relation between age (or stellar mass-to-light ratio Upsilon(*)) and surface mass density, the best predictor of SSP age amongst parameters based on FP observables. We show that the FP residuals (anti)correlate with the residuals of the relation between surface density and Upsilon(*). This correlation implies that part of the FP scatter is due to the broad age and Upsilon(*) distribution at any given surface mass density. Using virial mass and Upsilon(*), we construct a simulated FP and compare it to the observed FP. We find that, while the empirical relations between observed stellar population relations and FP observables are responsible for most (75 per cent) of the FP scatter, on their own they do not explain the observed tilt of the FP away from the virial plane. |
format |
Article in Journal/Newspaper |
author |
D'Eugenio, Francesco Colless, Matthew Scott, Nicholas van der Wel, Arjen Davies, Roger L van de Sande, Jesse Sweet, Sarah M Oh, Sree Groves, Brent Sharp, Rob Owers, Matt S Bland-Hawthorn, Joss Croom, Scott M Brough, Sarah Bryant, Julia J Goodwin, Michael Lawrence, Jon S Lorente, Nuria P F Richards, Samuel N |
author_facet |
D'Eugenio, Francesco Colless, Matthew Scott, Nicholas van der Wel, Arjen Davies, Roger L van de Sande, Jesse Sweet, Sarah M Oh, Sree Groves, Brent Sharp, Rob Owers, Matt S Bland-Hawthorn, Joss Croom, Scott M Brough, Sarah Bryant, Julia J Goodwin, Michael Lawrence, Jon S Lorente, Nuria P F Richards, Samuel N |
author_sort |
D'Eugenio, Francesco |
title |
The SAMI galaxy survey : stellar population and structural trends across the Fundamental Plane |
title_short |
The SAMI galaxy survey : stellar population and structural trends across the Fundamental Plane |
title_full |
The SAMI galaxy survey : stellar population and structural trends across the Fundamental Plane |
title_fullStr |
The SAMI galaxy survey : stellar population and structural trends across the Fundamental Plane |
title_full_unstemmed |
The SAMI galaxy survey : stellar population and structural trends across the Fundamental Plane |
title_sort |
sami galaxy survey : stellar population and structural trends across the fundamental plane |
publishDate |
2021 |
url |
https://biblio.ugent.be/publication/8723931 http://hdl.handle.net/1854/LU-8723931 https://doi.org/10.1093/mnras/stab1146 https://biblio.ugent.be/publication/8723931/file/8758096 |
long_lat |
ENVELOPE(-37.150,-37.150,-54.117,-54.117) |
geographic |
Zero Point |
geographic_facet |
Zero Point |
genre |
sami |
genre_facet |
sami |
op_source |
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY ISSN: 0035-8711 ISSN: 1365-2966 |
op_relation |
https://biblio.ugent.be/publication/8723931 http://hdl.handle.net/1854/LU-8723931 http://dx.doi.org/10.1093/mnras/stab1146 https://biblio.ugent.be/publication/8723931/file/8758096 |
op_rights |
No license (in copyright) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/mnras/stab1146 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
504 |
container_issue |
4 |
container_start_page |
5098 |
op_container_end_page |
5130 |
_version_ |
1768374112238960640 |