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 Hα and [N ii] emission from 288 K band-selected galaxies at 1.2 ≲ z ≲ 1.8, with stellar masses in the range log10(M∗/M⊙)≈9 – 11.5. In this paper, we describe the survey design, present the sam...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Language: | English |
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2021
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Online Access: | https://orbit.dtu.dk/en/publications/ffa69c3c-9faa-4c2c-a309-665f924b8fe6 https://doi.org/10.1093/mnras/stab1692 https://backend.orbit.dtu.dk/ws/files/259140581/stab1692_1_.pdf |
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ftdtupubl:oai:pure.atira.dk:publications/ffa69c3c-9faa-4c2c-a309-665f924b8fe6 2024-09-09T20:06:20+00:00 The KMOS galaxy evolution survey (KGES): the angular momentum of star-forming galaxies over the last ≈10 Gyr Tiley, Alfred 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 application/pdf https://orbit.dtu.dk/en/publications/ffa69c3c-9faa-4c2c-a309-665f924b8fe6 https://doi.org/10.1093/mnras/stab1692 https://backend.orbit.dtu.dk/ws/files/259140581/stab1692_1_.pdf eng eng https://orbit.dtu.dk/en/publications/ffa69c3c-9faa-4c2c-a309-665f924b8fe6 info:eu-repo/semantics/openAccess 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 , ' The KMOS galaxy evolution survey (KGES): the angular momentum of star-forming galaxies over the last ≈10 Gyr ' , Monthly Notices of the Royal Astronomical Society , vol. 506 , pp. 323–342 . https://doi.org/10.1093/mnras/stab1692 Galaxies: general Galaxies: evolution Galaxies: kinematics and dynamics Galaxies: star formation article 2021 ftdtupubl https://doi.org/10.1093/mnras/stab1692 2024-08-13T00:03:06Z We present the KMOS Galaxy Evolution Survey (KGES), a K -band Multi-Object Spectrograph (KMOS) study of the Hα and [N ii] emission from 288 K band-selected galaxies at 1.2 ≲ z ≲ 1.8, with stellar masses in the range log10(M∗/M⊙)≈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 ≈ 1.5, ≈1 and ≈0. We find that stellar mass, rather than redshift, most strongly correlates with the disc fraction amongst star-forming galaxies at z ≲ 1.5, observing only a modest increase in the prevalence of discs between z ≈ 1.5 and z ≈ 0.04 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 normalization 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 ≈ 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. Article in Journal/Newspaper sami Technical University of Denmark: DTU Orbit Kross ENVELOPE(-21.161,-21.161,63.981,63.981) Monthly Notices of the Royal Astronomical Society 506 1 323 342 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Galaxies: general Galaxies: evolution Galaxies: kinematics and dynamics Galaxies: star formation |
spellingShingle |
Galaxies: general Galaxies: evolution Galaxies: kinematics and dynamics Galaxies: star formation Tiley, Alfred 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 |
Galaxies: general Galaxies: evolution Galaxies: kinematics and dynamics Galaxies: star formation |
description |
We present the KMOS Galaxy Evolution Survey (KGES), a K -band Multi-Object Spectrograph (KMOS) study of the Hα and [N ii] emission from 288 K band-selected galaxies at 1.2 ≲ z ≲ 1.8, with stellar masses in the range log10(M∗/M⊙)≈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 ≈ 1.5, ≈1 and ≈0. We find that stellar mass, rather than redshift, most strongly correlates with the disc fraction amongst star-forming galaxies at z ≲ 1.5, observing only a modest increase in the prevalence of discs between z ≈ 1.5 and z ≈ 0.04 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 normalization 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 ≈ 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. |
format |
Article in Journal/Newspaper |
author |
Tiley, Alfred 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, Alfred 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, Alfred 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 |
publishDate |
2021 |
url |
https://orbit.dtu.dk/en/publications/ffa69c3c-9faa-4c2c-a309-665f924b8fe6 https://doi.org/10.1093/mnras/stab1692 https://backend.orbit.dtu.dk/ws/files/259140581/stab1692_1_.pdf |
long_lat |
ENVELOPE(-21.161,-21.161,63.981,63.981) |
geographic |
Kross |
geographic_facet |
Kross |
genre |
sami |
genre_facet |
sami |
op_source |
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 , ' The KMOS galaxy evolution survey (KGES): the angular momentum of star-forming galaxies over the last ≈10 Gyr ' , Monthly Notices of the Royal Astronomical Society , vol. 506 , pp. 323–342 . https://doi.org/10.1093/mnras/stab1692 |
op_relation |
https://orbit.dtu.dk/en/publications/ffa69c3c-9faa-4c2c-a309-665f924b8fe6 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/mnras/stab1692 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
506 |
container_issue |
1 |
container_start_page |
323 |
op_container_end_page |
342 |
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1809938727900807168 |