The SAMI Pilot Survey: The Fundamental and Mass Planes in Three Low-Redshift Clusters
Using new integral field observations of 106 galaxies in three nearby clusters we investigate how the intrinsic scatter of the Fundamental Plane depends on the way in which the velocity dispersion and effective radius are measured. Our spatially resolved spectroscopy, combined with a cluster sample...
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ftdatacite:10.48550/arxiv.1505.04354 2023-05-15T18:12:21+02:00 The SAMI Pilot Survey: The Fundamental and Mass Planes in Three Low-Redshift Clusters Scott, Nicholas Fogarty, L. M. R. Owers, Matt S. Croom, Scott M. Colless, Matthew Davies, Roger L. Brough, S. Pracy, Michael B. Bland-Hawthorn, Joss Jones, D. Heath Allen, J. T. Bryant, Julia J. Cortese, Luca Goodwin, Michael Green, Andrew W. Konstantopoulos, Iraklis S. Lawrence, J. S. Richards, Samuel Sharp, Rob 2015 https://dx.doi.org/10.48550/arxiv.1505.04354 https://arxiv.org/abs/1505.04354 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Astrophysics of Galaxies astro-ph.GA FOS Physical sciences Preprint Article article CreativeWork 2015 ftdatacite https://doi.org/10.48550/arxiv.1505.04354 2022-04-01T12:13:44Z Using new integral field observations of 106 galaxies in three nearby clusters we investigate how the intrinsic scatter of the Fundamental Plane depends on the way in which the velocity dispersion and effective radius are measured. Our spatially resolved spectroscopy, combined with a cluster sample with negligible relative distance errors allows us to derive a Fundamental Plane with minimal systematic uncertainties. From the apertures we tested, we find that velocity dispersions measured within a circular aperture with radius equal to one effective radius minimises the intrinsic scatter of the Fundamental Plane. Using simple yet powerful Jeans dynamical models we determine dynamical masses for our galaxies. Replacing luminosity in the Fundamental Plane with dynamical mass, we demonstrate that the resulting Mass Plane has further reduced scatter, consistent with zero intrinsic scatter. Using these dynamical models we also find evidence for a possibly non-linear relationship between dynamical mass-to-light ratio and velocity dispersion. : 15 pages, 11 figures. Accepted for publication in MNRAS Report sami DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
spellingShingle |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences Scott, Nicholas Fogarty, L. M. R. Owers, Matt S. Croom, Scott M. Colless, Matthew Davies, Roger L. Brough, S. Pracy, Michael B. Bland-Hawthorn, Joss Jones, D. Heath Allen, J. T. Bryant, Julia J. Cortese, Luca Goodwin, Michael Green, Andrew W. Konstantopoulos, Iraklis S. Lawrence, J. S. Richards, Samuel Sharp, Rob The SAMI Pilot Survey: The Fundamental and Mass Planes in Three Low-Redshift Clusters |
topic_facet |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
description |
Using new integral field observations of 106 galaxies in three nearby clusters we investigate how the intrinsic scatter of the Fundamental Plane depends on the way in which the velocity dispersion and effective radius are measured. Our spatially resolved spectroscopy, combined with a cluster sample with negligible relative distance errors allows us to derive a Fundamental Plane with minimal systematic uncertainties. From the apertures we tested, we find that velocity dispersions measured within a circular aperture with radius equal to one effective radius minimises the intrinsic scatter of the Fundamental Plane. Using simple yet powerful Jeans dynamical models we determine dynamical masses for our galaxies. Replacing luminosity in the Fundamental Plane with dynamical mass, we demonstrate that the resulting Mass Plane has further reduced scatter, consistent with zero intrinsic scatter. Using these dynamical models we also find evidence for a possibly non-linear relationship between dynamical mass-to-light ratio and velocity dispersion. : 15 pages, 11 figures. Accepted for publication in MNRAS |
format |
Report |
author |
Scott, Nicholas Fogarty, L. M. R. Owers, Matt S. Croom, Scott M. Colless, Matthew Davies, Roger L. Brough, S. Pracy, Michael B. Bland-Hawthorn, Joss Jones, D. Heath Allen, J. T. Bryant, Julia J. Cortese, Luca Goodwin, Michael Green, Andrew W. Konstantopoulos, Iraklis S. Lawrence, J. S. Richards, Samuel Sharp, Rob |
author_facet |
Scott, Nicholas Fogarty, L. M. R. Owers, Matt S. Croom, Scott M. Colless, Matthew Davies, Roger L. Brough, S. Pracy, Michael B. Bland-Hawthorn, Joss Jones, D. Heath Allen, J. T. Bryant, Julia J. Cortese, Luca Goodwin, Michael Green, Andrew W. Konstantopoulos, Iraklis S. Lawrence, J. S. Richards, Samuel Sharp, Rob |
author_sort |
Scott, Nicholas |
title |
The SAMI Pilot Survey: The Fundamental and Mass Planes in Three Low-Redshift Clusters |
title_short |
The SAMI Pilot Survey: The Fundamental and Mass Planes in Three Low-Redshift Clusters |
title_full |
The SAMI Pilot Survey: The Fundamental and Mass Planes in Three Low-Redshift Clusters |
title_fullStr |
The SAMI Pilot Survey: The Fundamental and Mass Planes in Three Low-Redshift Clusters |
title_full_unstemmed |
The SAMI Pilot Survey: The Fundamental and Mass Planes in Three Low-Redshift Clusters |
title_sort |
sami pilot survey: the fundamental and mass planes in three low-redshift clusters |
publisher |
arXiv |
publishDate |
2015 |
url |
https://dx.doi.org/10.48550/arxiv.1505.04354 https://arxiv.org/abs/1505.04354 |
genre |
sami |
genre_facet |
sami |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1505.04354 |
_version_ |
1766184897739751424 |