K-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at z ≈ 0.2-0.6
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 (predominantly blue) Hα-detected galaxies at 0.2 ≲ z ≲ 0.6 in field and cluster environments. K-CLASH targets galaxies in four Cluster Lensing A...
| 主要な著者: | , , , , , , , , , , , , |
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| フォーマット: | Journal article |
| 言語: | English |
| 出版事項: |
Oxford University Press
2020
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| _version_ | 1826274893315964928 |
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| author | Tiley, AL Vaughan, SP Stott, JP Davies, RL Prichard, LJ Bunker, A Bureau, M Cappellari, M Jarvis, M Robotham, A Cortese, L Bellstedt, S Ansarinejad, B |
| author_facet | Tiley, AL Vaughan, SP Stott, JP Davies, RL Prichard, LJ Bunker, A Bureau, M Cappellari, M Jarvis, M Robotham, A Cortese, L Bellstedt, S Ansarinejad, B |
| author_sort | Tiley, AL |
| collection | OXFORD |
| 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 (predominantly blue) Hα-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′ 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 Hα-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 occured. |
| first_indexed | 2024-03-06T22:50:23Z |
| format | Journal article |
| id | oxford-uuid:5e92e8a8-4e67-4686-9e61-f3b6cf52d351 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:50:23Z |
| publishDate | 2020 |
| publisher | Oxford University Press |
| record_format | dspace |
| spelling | oxford-uuid:5e92e8a8-4e67-4686-9e61-f3b6cf52d3512022-03-26T17:41:41ZK-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at z ≈ 0.2-0.6Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5e92e8a8-4e67-4686-9e61-f3b6cf52d351EnglishSymplectic ElementsOxford University Press2020Tiley, ALVaughan, SPStott, JPDavies, RLPrichard, LJBunker, ABureau, MCappellari, MJarvis, MRobotham, ACortese, LBellstedt, SAnsarinejad, BWe 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 (predominantly blue) Hα-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′ 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 Hα-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 occured. |
| spellingShingle | Tiley, AL Vaughan, SP Stott, JP Davies, RL Prichard, LJ Bunker, A Bureau, M Cappellari, M Jarvis, M Robotham, A Cortese, L Bellstedt, S Ansarinejad, B K-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at z ≈ 0.2-0.6 |
| title | K-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at z ≈ 0.2-0.6 |
| title_full | K-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at z ≈ 0.2-0.6 |
| title_fullStr | K-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at z ≈ 0.2-0.6 |
| title_full_unstemmed | K-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at z ≈ 0.2-0.6 |
| title_short | K-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at z ≈ 0.2-0.6 |
| title_sort | k clash spatially resolving star forming galaxies in field and cluster environments at z ≈ 0 2 0 6 |
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