The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ...
We measure the ionised gas velocity dispersions of star-forming galaxies in the MAGPI survey ($z\sim0.3$) and compare them with galaxies in the SAMI ($z\sim0.05$) and KROSS ($z\sim1$) surveys to investigate how the ionised gas velocity dispersion evolves. For the first time, we use a consistent meth...
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Online Access: | https://dx.doi.org/10.48550/arxiv.2408.12224 https://arxiv.org/abs/2408.12224 |
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ftdatacite:10.48550/arxiv.2408.12224 2024-09-15T18:33:14+00:00 The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ... Mai, Yifan Croom, Scott M. Wisnioski, Emily Vaughan, Sam P. Varidel, Mathew R. Battisti, Andrew J. Mendel, J. Trevor Mun, Marcie Tsukui, Takafumi Foster, Caroline Harborne, Katherine E. Lagos, Claudia D. P. Wang, Di Bellstedt, Sabine Bland-Hawthorn, Joss Colless, Matthew D'Eugenio, Francesco Grasha, Kathryn Peng, Yingjie Santucci, Giulia Sweet, Sarah M. Thater, Sabine Valenzuela, Lucas M. Ziegler, Bodo 2024 https://dx.doi.org/10.48550/arxiv.2408.12224 https://arxiv.org/abs/2408.12224 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 CreativeWork Preprint Article article 2024 ftdatacite https://doi.org/10.48550/arxiv.2408.12224 2024-09-02T09:14:23Z We measure the ionised gas velocity dispersions of star-forming galaxies in the MAGPI survey ($z\sim0.3$) and compare them with galaxies in the SAMI ($z\sim0.05$) and KROSS ($z\sim1$) surveys to investigate how the ionised gas velocity dispersion evolves. For the first time, we use a consistent method that forward models galaxy kinematics from $z=0$ to $z=1$. This method accounts for spatial substructure in emission line flux and beam smearing. We investigate the correlation between gas velocity dispersion and galaxy properties to understand the mechanisms that drive gas turbulence. We find that in both MAGPI and SAMI galaxies, the gas velocity dispersion more strongly correlates with the star-formation rate surface density ($Σ_{\rm SFR}$) than with a variety of other physical properties, and the average gas velocity dispersion is similar, at the same $Σ_{\rm SFR}$, for SAMI, MAGPI and KROSS galaxies. The results indicate that mechanisms related to $Σ_{\rm SFR}$ could be the dominant driver of gas turbulence ... : 15 pages, 10 figures, accepted for publication in MNRAS ... Article in Journal/Newspaper sami DataCite |
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Astrophysics of Galaxies astro-ph.GA FOS: Physical sciences |
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Astrophysics of Galaxies astro-ph.GA FOS: Physical sciences Mai, Yifan Croom, Scott M. Wisnioski, Emily Vaughan, Sam P. Varidel, Mathew R. Battisti, Andrew J. Mendel, J. Trevor Mun, Marcie Tsukui, Takafumi Foster, Caroline Harborne, Katherine E. Lagos, Claudia D. P. Wang, Di Bellstedt, Sabine Bland-Hawthorn, Joss Colless, Matthew D'Eugenio, Francesco Grasha, Kathryn Peng, Yingjie Santucci, Giulia Sweet, Sarah M. Thater, Sabine Valenzuela, Lucas M. Ziegler, Bodo The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ... |
topic_facet |
Astrophysics of Galaxies astro-ph.GA FOS: Physical sciences |
description |
We measure the ionised gas velocity dispersions of star-forming galaxies in the MAGPI survey ($z\sim0.3$) and compare them with galaxies in the SAMI ($z\sim0.05$) and KROSS ($z\sim1$) surveys to investigate how the ionised gas velocity dispersion evolves. For the first time, we use a consistent method that forward models galaxy kinematics from $z=0$ to $z=1$. This method accounts for spatial substructure in emission line flux and beam smearing. We investigate the correlation between gas velocity dispersion and galaxy properties to understand the mechanisms that drive gas turbulence. We find that in both MAGPI and SAMI galaxies, the gas velocity dispersion more strongly correlates with the star-formation rate surface density ($Σ_{\rm SFR}$) than with a variety of other physical properties, and the average gas velocity dispersion is similar, at the same $Σ_{\rm SFR}$, for SAMI, MAGPI and KROSS galaxies. The results indicate that mechanisms related to $Σ_{\rm SFR}$ could be the dominant driver of gas turbulence ... : 15 pages, 10 figures, accepted for publication in MNRAS ... |
format |
Article in Journal/Newspaper |
author |
Mai, Yifan Croom, Scott M. Wisnioski, Emily Vaughan, Sam P. Varidel, Mathew R. Battisti, Andrew J. Mendel, J. Trevor Mun, Marcie Tsukui, Takafumi Foster, Caroline Harborne, Katherine E. Lagos, Claudia D. P. Wang, Di Bellstedt, Sabine Bland-Hawthorn, Joss Colless, Matthew D'Eugenio, Francesco Grasha, Kathryn Peng, Yingjie Santucci, Giulia Sweet, Sarah M. Thater, Sabine Valenzuela, Lucas M. Ziegler, Bodo |
author_facet |
Mai, Yifan Croom, Scott M. Wisnioski, Emily Vaughan, Sam P. Varidel, Mathew R. Battisti, Andrew J. Mendel, J. Trevor Mun, Marcie Tsukui, Takafumi Foster, Caroline Harborne, Katherine E. Lagos, Claudia D. P. Wang, Di Bellstedt, Sabine Bland-Hawthorn, Joss Colless, Matthew D'Eugenio, Francesco Grasha, Kathryn Peng, Yingjie Santucci, Giulia Sweet, Sarah M. Thater, Sabine Valenzuela, Lucas M. Ziegler, Bodo |
author_sort |
Mai, Yifan |
title |
The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ... |
title_short |
The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ... |
title_full |
The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ... |
title_fullStr |
The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ... |
title_full_unstemmed |
The MAGPI Survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ... |
title_sort |
magpi survey: the evolution and drivers of gas turbulence in intermediate-redshift galaxies ... |
publisher |
arXiv |
publishDate |
2024 |
url |
https://dx.doi.org/10.48550/arxiv.2408.12224 https://arxiv.org/abs/2408.12224 |
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.2408.12224 |
_version_ |
1810474947619848192 |