Data

Data from: K-CLASH: spatially resolving star-forming galaxies in field and cluster environments at z ≍ 0.2-0.6

The University of Western Australia
Tiley, Alfred ; Vaughan, Sam P. ; Stott, John P. ; Davies, Roger L. ; Prichard, Laura J. ; Bunker, Andrew ; Bureau, Martin ; Cappellari, Michele ; Jarvis, Matt J. ; Robotham, Aaron ; Cortese, Luca ; Bellstedt, Sabine ; Ansarinejad, Behzad
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://research-repository.uwa.edu.au/en/datasets/1c61681e-d94f-4bff-a958-ae588e512b83&rft.title=Data from: K-CLASH: spatially resolving star-forming galaxies in field and cluster environments at z ≍ 0.2-0.6&rft.identifier=1c61681e-d94f-4bff-a958-ae588e512b83&rft.publisher=SAO/NASA Astrophysics Data System (ADS)&rft.description=We present the KMOS-CLASH (K-CLASH) survey, a K-band Multi-Object Spectrograph (KMOS) survey, of the spatially resolved gas properties and kinematics of 191 (pre-dominantly blue) H α-detected galaxies at 0.2 z 0.6 in field and cluster environments. K-CLASH targets galaxies in four Cluster Lensing And Supernova survey with Hubble (CLASH) fields in the KMOS IZ-band, over 7 arcmin radius (≈2-3 Mpc) fields of view. K-CLASH aims to study the transition of star-forming galaxies from turbulent, highly star-forming disc-like and peculiar systems at z ≈ 1-3, to the comparatively quiescent, ordered late-type galaxies at z ≈ 0, and to examine the role of clusters in the build-up of the red sequence since z ≈ 1. In this paper, we describe the K-CLASH survey, present the sample, and provide an overview of the K-CLASH galaxy properties. We demonstrate that our sample comprises star-forming galaxies typical of their stellar masses and epochs, residing both in field and cluster environments. We conclude K-CLASH provides an ideal sample to bridge the gap between existing large integral-field spectroscopy surveys at higher and lower redshifts. We find that star-forming K-CLASH cluster galaxies at intermediate redshifts have systematically lower stellar masses than their star-forming counterparts in the field, hinting at possible 'downsizing' scenarios of galaxy growth in clusters at these epochs. We measure no difference between the star formation rates of H α-detected, star-forming galaxies in either environment after accounting for stellar mass, suggesting that cluster quenching occurs very rapidly during the epochs probed by K-CLASH, or that star-forming K-CLASH galaxies in clusters have only recently arrived there, with insufficient time elapsed for quenching to have occurred.&rft.creator=Tiley, Alfred &rft.creator=Vaughan, Sam P. &rft.creator=Stott, John P. &rft.creator=Davies, Roger L. &rft.creator=Prichard, Laura J. &rft.creator=Bunker, Andrew &rft.creator=Bureau, Martin &rft.creator=Cappellari, Michele &rft.creator=Jarvis, Matt J. &rft.creator=Robotham, Aaron &rft.creator=Cortese, Luca &rft.creator=Bellstedt, Sabine &rft.creator=Ansarinejad, Behzad &rft.date=2020&rft.relation=http://research-repository.uwa.edu.au/en/publications/f590d263-d8c5-4922-84f6-a5996350fe63&rft_subject=galaxies: star formation&rft_subject=galaxies: evolution&rft_subject=galaxies: general&rft_subject=galaxies: kinematics and dynamics&rft_subject=Astrophysics - Astrophysics of Galaxies&rft.type=dataset&rft.language=English Access the data
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We present the KMOS-CLASH (K-CLASH) survey, a K-band Multi-Object Spectrograph (KMOS) survey, of the spatially resolved gas properties and kinematics of 191 (pre-dominantly blue) H α-detected galaxies at 0.2 z 0.6 in field and cluster environments. K-CLASH targets galaxies in four Cluster Lensing And Supernova survey with Hubble (CLASH) fields in the KMOS IZ-band, over 7 arcmin radius (≈2-3 Mpc) fields of view. K-CLASH aims to study the transition of star-forming galaxies from turbulent, highly star-forming disc-like and peculiar systems at z ≈ 1-3, to the comparatively quiescent, ordered late-type galaxies at z ≈ 0, and to examine the role of clusters in the build-up of the red sequence since z ≈ 1. In this paper, we describe the K-CLASH survey, present the sample, and provide an overview of the K-CLASH galaxy properties. We demonstrate that our sample comprises star-forming galaxies typical of their stellar masses and epochs, residing both in field and cluster environments. We conclude K-CLASH provides an ideal sample to bridge the gap between existing large integral-field spectroscopy surveys at higher and lower redshifts. We find that star-forming K-CLASH cluster galaxies at intermediate redshifts have systematically lower stellar masses than their star-forming counterparts in the field, hinting at possible 'downsizing' scenarios of galaxy growth in clusters at these epochs. We measure no difference between the star formation rates of H α-detected, star-forming galaxies in either environment after accounting for stellar mass, suggesting that cluster quenching occurs very rapidly during the epochs probed by K-CLASH, or that star-forming K-CLASH galaxies in clusters have only recently arrived there, with insufficient time elapsed for quenching to have occurred.

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External Organisations
University of Oxford; University of Sydney; ARC Centre of Excellence for Astrophysics in Three Dimensions (ASTRO3D); Lancaster University; Space Telescope Science Institute; Yonsei University; University of the Western Cape; Durham University
Associated Persons
Sam P. Vaughan (Creator); John P. Stott (Creator); Roger L. Davies (Creator); Laura J. Prichard (Creator); Andrew Bunker (Creator); Martin Bureau (Creator); Michele Cappellari (Creator); Matt J. Jarvis (Creator); Behzad Ansarinejad (Creator)

Issued: 2020-07

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Subjects
Astrophysics - Astrophysics of Galaxies | galaxies: evolution | galaxies: general | galaxies: kinematics and dynamics | galaxies: star formation |

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  • global : 1c61681e-d94f-4bff-a958-ae588e512b83
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