The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr
We present the KMOS Galaxy Evolution Survey (KGES), a $K$-band Multi-Object Spectrograph (KMOS) study of the H$α$ and [NII] emission from 288 $K$ band-selected galaxies at $1.2 \lesssim z \lesssim 1.8$, with stellar masses in the range $\log_{10}(M_{*}/\rm{M}_{\odot})\approx$9-11.5. In this paper, w...
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ftdatacite:10.48550/arxiv.2106.05511 2023-05-15T18:13:10+02:00 The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr Tiley, A. L. Gillman, S. Cortese, L. Swinbank, A. M. Dudzevičiūtė, U. Harrison, C. M. Smail, I. Obreschkow, D. Croom, S. M. Sharples, R. M. Puglisi, A. 2021 https://dx.doi.org/10.48550/arxiv.2106.05511 https://arxiv.org/abs/2106.05511 unknown arXiv https://dx.doi.org/10.1093/mnras/stab1692 Creative Commons Attribution Non Commercial Share Alike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode cc-by-nc-sa-4.0 CC-BY-NC-SA Astrophysics of Galaxies astro-ph.GA FOS Physical sciences article-journal Article ScholarlyArticle Text 2021 ftdatacite https://doi.org/10.48550/arxiv.2106.05511 https://doi.org/10.1093/mnras/stab1692 2022-03-10T13:55:43Z We present the KMOS Galaxy Evolution Survey (KGES), a $K$-band Multi-Object Spectrograph (KMOS) study of the H$α$ and [NII] emission from 288 $K$ band-selected galaxies at $1.2 \lesssim z \lesssim 1.8$, with stellar masses in the range $\log_{10}(M_{*}/\rm{M}_{\odot})\approx$9-11.5. In this paper, we describe the survey design, present the sample, and discuss the key properties of the KGES galaxies. We combine KGES with appropriately matched samples at lower redshifts from the KMOS Redshift One Spectroscopic Survey (KROSS) and the SAMI Galaxy Survey. Accounting for the effects of sample selection, data quality, and analysis techniques between surveys, we examine the kinematic characteristics and angular momentum content of star-forming galaxies at $z\approx1.5$, $\approx1$ and $\approx0$. We find that stellar mass, rather than redshift, most strongly correlates with the disc fraction amongst star-forming galaxies at $z \lesssim 1.5$, observing only a modest increase in the prevalence of discs between $z\approx1.5$ and $z\approx0.04$ at fixed stellar mass. Furthermore, typical star-forming galaxies follow the same median relation between specific angular momentum and stellar mass, regardless of their redshift, with the normalisation of the relation depending more strongly on how disc-like a galaxy's kinematics are. This suggests that massive star-forming discs form in a very similar manner across the $\approx$ 10 Gyr encompassed by our study and that the inferred link between the angular momentum of galaxies and their haloes does not change significantly across the stellar mass and redshift ranges probed in this work. : 24 pages, 9 figures, 3 tables. MNRAS in press Article in Journal/Newspaper sami DataCite Metadata Store (German National Library of Science and Technology) Kross ENVELOPE(-21.161,-21.161,63.981,63.981) |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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topic |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
spellingShingle |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences Tiley, A. L. Gillman, S. Cortese, L. Swinbank, A. M. Dudzevičiūtė, U. Harrison, C. M. Smail, I. Obreschkow, D. Croom, S. M. Sharples, R. M. Puglisi, A. The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr |
topic_facet |
Astrophysics of Galaxies astro-ph.GA FOS Physical sciences |
description |
We present the KMOS Galaxy Evolution Survey (KGES), a $K$-band Multi-Object Spectrograph (KMOS) study of the H$α$ and [NII] emission from 288 $K$ band-selected galaxies at $1.2 \lesssim z \lesssim 1.8$, with stellar masses in the range $\log_{10}(M_{*}/\rm{M}_{\odot})\approx$9-11.5. In this paper, we describe the survey design, present the sample, and discuss the key properties of the KGES galaxies. We combine KGES with appropriately matched samples at lower redshifts from the KMOS Redshift One Spectroscopic Survey (KROSS) and the SAMI Galaxy Survey. Accounting for the effects of sample selection, data quality, and analysis techniques between surveys, we examine the kinematic characteristics and angular momentum content of star-forming galaxies at $z\approx1.5$, $\approx1$ and $\approx0$. We find that stellar mass, rather than redshift, most strongly correlates with the disc fraction amongst star-forming galaxies at $z \lesssim 1.5$, observing only a modest increase in the prevalence of discs between $z\approx1.5$ and $z\approx0.04$ at fixed stellar mass. Furthermore, typical star-forming galaxies follow the same median relation between specific angular momentum and stellar mass, regardless of their redshift, with the normalisation of the relation depending more strongly on how disc-like a galaxy's kinematics are. This suggests that massive star-forming discs form in a very similar manner across the $\approx$ 10 Gyr encompassed by our study and that the inferred link between the angular momentum of galaxies and their haloes does not change significantly across the stellar mass and redshift ranges probed in this work. : 24 pages, 9 figures, 3 tables. MNRAS in press |
format |
Article in Journal/Newspaper |
author |
Tiley, A. L. Gillman, S. Cortese, L. Swinbank, A. M. Dudzevičiūtė, U. Harrison, C. M. Smail, I. Obreschkow, D. Croom, S. M. Sharples, R. M. Puglisi, A. |
author_facet |
Tiley, A. L. Gillman, S. Cortese, L. Swinbank, A. M. Dudzevičiūtė, U. Harrison, C. M. Smail, I. Obreschkow, D. Croom, S. M. Sharples, R. M. Puglisi, A. |
author_sort |
Tiley, A. L. |
title |
The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr |
title_short |
The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr |
title_full |
The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr |
title_fullStr |
The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr |
title_full_unstemmed |
The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr |
title_sort |
kmos galaxy evolution survey (kges): the angular momentum of star-forming galaxies over the last ~10 gyr |
publisher |
arXiv |
publishDate |
2021 |
url |
https://dx.doi.org/10.48550/arxiv.2106.05511 https://arxiv.org/abs/2106.05511 |
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ENVELOPE(-21.161,-21.161,63.981,63.981) |
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Kross |
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Kross |
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sami |
genre_facet |
sami |
op_relation |
https://dx.doi.org/10.1093/mnras/stab1692 |
op_rights |
Creative Commons Attribution Non Commercial Share Alike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode cc-by-nc-sa-4.0 |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/10.48550/arxiv.2106.05511 https://doi.org/10.1093/mnras/stab1692 |
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1766185655315988480 |