K-CLASH: spatially-resolving star-forming galaxies in field and cluster environments at $z\approx 0.2$-$0.6$

Abstract

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) H$\alpha$-detected galaxies at $0.2\lesssim z\lesssim 0.6$ 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 $7^{\prime }$ radius ($\approx 2$-$3$ 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 $z\approx 1$-$3$, to the comparatively quiescent, ordered late-type galaxies at $z\approx 0$, and to examine the role of clusters in the build-up of the red sequence since $z\approx 1$. 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$\alpha$-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.

Accepted for publication in MNRAS, 31 pages, 15 figures, 2 tables; updated to correct typos in Section 5.2

References in corpus (25)

• Cosmic Star Formation History
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The Host Galaxies and Classification of Active Galactic Nuclei
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• A simple model to interpret the ultraviolet, optical and infrared emission from galaxies
• The MUSE second-generation VLT instrument
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• The stellar mass assembly of galaxies from z=0 to z=4. Analysis of a sample selected in the rest-frame near-infrared with Spitzer
• The KMOS^3D Survey: design, first results, and the evolution of galaxy kinematics from 0.7<z<2.7
• The SAMI Galaxy Survey: instrument specification and target selection
• Galaxies in the Hubble Ultra Deep Field: I. Detection, Multiband Photometry, Photometric Redshifts, and Morphology
• Star formation in AEGIS field galaxies since z=1.1 . Staged galaxy formation, and a model of mass-dependent gas exhaustion
• Non-linear Least Squares Fitting in IDL with MPFIT
• A complete sample of twelve very X-ray luminous galaxy clusters at z>0.5
• Hubble Space Telescope Combined Strong and Weak Lensing Analysis of the CLASH Sample: Mass and Magnification Models and Systematic Uncertainties
• CLASH: Weak-Lensing Shear-and-Magnification Analysis of 20 Galaxy Clusters
• Stellar masses from the CANDELS survey: the GOODS-South and UDS fields
• Imfit: A Fast, Flexible New Program for Astronomical Image Fitting
• The evolution of the near-IR galaxy Luminosity Function and colour bimodality up to z ~ 2 from the UKIDSS Ultra Deep Survey Early Data Release
• Deep U band and R imaging of GOODS-South: Observations,data reduction and first results
• CANDELS Multiwavelength Catalogs: Source Identification and Photometry in the CANDELS COSMOS Survey Field
• The KMOS Redshift One Spectroscopic Survey (KROSS): rotational velocities and angular momentum of z~0.9 galaxies
• The KMOS Cluster Survey (KCS) I: The fundamental plane and the formation ages of cluster galaxies at redshift $1.4<z<1.6$
• Fifteen years of the Advanced CCD Imaging Spectrometer
• Interaction of Galaxies with the ICM

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• The KMOS Galaxy Evolution Survey (KGES): the angular momentum of star-forming galaxies over the last ~10 Gyr
• K-CLASH: Strangulation and Ram Pressure Stripping in Galaxy Cluster Members at 0.3 < z < 0.6
• The First Integral Field Unit Spectroscopic View of Shocked Cluster Galaxies
• Simulating gas kinematic studies of high-redshift galaxies with the HARMONI Integral Field Spectrograph
• The environment of QSO triplets at 1 $\lesssim$ z $\lesssim$ 1.5
• GLACE survey: galaxy activity in ZwCl0024+1652 cluster from strong optical emission lines