The intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer)
Many recent integral integral field spectroscopy (IFS) survey teams have used stellar kinematic maps combined with imaging to statistically infer the underlying distributions of galaxy intrinsic shapes. With now several IFS samples at our disposal, the method, which was originally proposed by M. Fra...
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ftdatacite:10.48550/arxiv.1908.08648 2023-05-15T18:12:04+02:00 The intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer) Foster, Caroline Bassett, Robert 2019 https://dx.doi.org/10.48550/arxiv.1908.08648 https://arxiv.org/abs/1908.08648 unknown arXiv https://dx.doi.org/10.1017/s1743921319007944 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Astrophysics of Galaxies astro-ph.GA FOS Physical sciences article-journal Article ScholarlyArticle Text 2019 ftdatacite https://doi.org/10.48550/arxiv.1908.08648 https://doi.org/10.1017/s1743921319007944 2022-03-10T16:29:05Z Many recent integral integral field spectroscopy (IFS) survey teams have used stellar kinematic maps combined with imaging to statistically infer the underlying distributions of galaxy intrinsic shapes. With now several IFS samples at our disposal, the method, which was originally proposed by M. Franx and collaborators in 1991, is gaining in popularity, having been so far applied to ATLAS3D, SAMI, MANGA and MASSIVE. We present results showing that a commonly assumed relationship between dynamical and intrinsic shape alignment does not hold in Illustris, affecting our ability to recover accurate intrinsic shape distributions. A further implication is that so-called "prolate rotation", where the bulk of stars in prolate galaxies are thought to rotate around the projected major axis, is a misnomer. : 4 pages, 1 figure, IAU353 Proceedings Article in Journal/Newspaper 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) |
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Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
spellingShingle |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences Foster, Caroline Bassett, Robert The intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer) |
topic_facet |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
description |
Many recent integral integral field spectroscopy (IFS) survey teams have used stellar kinematic maps combined with imaging to statistically infer the underlying distributions of galaxy intrinsic shapes. With now several IFS samples at our disposal, the method, which was originally proposed by M. Franx and collaborators in 1991, is gaining in popularity, having been so far applied to ATLAS3D, SAMI, MANGA and MASSIVE. We present results showing that a commonly assumed relationship between dynamical and intrinsic shape alignment does not hold in Illustris, affecting our ability to recover accurate intrinsic shape distributions. A further implication is that so-called "prolate rotation", where the bulk of stars in prolate galaxies are thought to rotate around the projected major axis, is a misnomer. : 4 pages, 1 figure, IAU353 Proceedings |
format |
Article in Journal/Newspaper |
author |
Foster, Caroline Bassett, Robert |
author_facet |
Foster, Caroline Bassett, Robert |
author_sort |
Foster, Caroline |
title |
The intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer) |
title_short |
The intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer) |
title_full |
The intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer) |
title_fullStr |
The intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer) |
title_full_unstemmed |
The intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer) |
title_sort |
intricate link between galaxy dynamics and intrinsic shape (or why so-called prolate rotation is a misnomer) |
publisher |
arXiv |
publishDate |
2019 |
url |
https://dx.doi.org/10.48550/arxiv.1908.08648 https://arxiv.org/abs/1908.08648 |
genre |
sami |
genre_facet |
sami |
op_relation |
https://dx.doi.org/10.1017/s1743921319007944 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1908.08648 https://doi.org/10.1017/s1743921319007944 |
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1766184642363260928 |