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Astrophysics > Astrophysics of Galaxies

arXiv:2009.13345 (astro-ph)
[Submitted on 28 Sep 2020]

Title:The GOGREEN and GCLASS Surveys: First Data Release

Authors:Michael L. Balogh (1), Remco F. J. van der Burg, Adam Muzzin, Gregory Rudnick, Gillian Wilson, Kristi Webb, Andrea Biviano, Kevin Boak, Pierluigi Cerulo, Jeffrey Chan, M. C. Cooper, David G. Gilbank, Stephen Gwyn, Chris Lidman, Jasleen Matharu, Sean L. McGee, Lyndsay Old, Irene Pintos-Castro, Andrew M. M. Reeves, Heath Shipley, Benedetta Vulcani, Howard K.C. Yee, M. Victoria Alonso, Callum Bellhouse, Kevin C. Cooke, Anna Davidson. Gabriella De Lucia, Ricardo Demarco, Nicole Drakos, Sean P. Fillingham, Alexis Finoguenov, Ben Forrest, Caelan Golledge, Pascale Jablonka, Diego Lambas Garcia, Karen McNab, Hernan Muriel, Julie B. Nantais, Allison Noble, Laura C. Parker, Grayson Petter, Bianca M. Poggianti, Melinda Townsend, Carlos Valotto, Tracy Webb, Dennis Zaritsky ((1) Department of Physics and Astronomy and Waterloo Centre for Astrophysics, University of Waterloo)
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Abstract:We present the first public data release of the GOGREEN and GCLASS surveys of galaxies in dense environments, spanning a redshift range $0.8<z<1.5$. The surveys consist of deep, multiwavelength photometry and extensive Gemini GMOS spectroscopy of galaxies in 26 overdense systems ranging in halo mass from small groups to the most massive clusters. The objective of both projects was primarily to understand how the evolution of galaxies is affected by their environment, and to determine the physical processes that lead to the quenching of star formation. There was an emphasis on obtaining unbiased spectroscopy over a wide stellar mass range ($M\gtrsim 2\times 10^{10}~\mathrm{M}_\odot$), throughout and beyond the cluster virialized regions. The final spectroscopic sample includes 2771 unique objects, of which 2257 have reliable spectroscopic redshifts. Of these, 1704 have redshifts in the range $0.8<z<1.5$, and nearly 800 are confirmed cluster members. Imaging spans the full optical and near-infrared wavelength range, at depths comparable to the UltraVISTA survey, and includes \textit{HST}/WFC3 F160W (GOGREEN) and F140W (GCLASS). This data release includes fully reduced images and spectra, with catalogues of advanced data products including redshifts, line strengths, star formation rates, stellar masses and rest-frame colours. Here we present an overview of the data, including an analysis of the spectroscopic completeness and redshift quality.
Comments: Accepted for publication in MNRAS Sept 28, 2020
Subjects: Astrophysics of Galaxies (astro-ph.GA)
Cite as: arXiv:2009.13345 [astro-ph.GA]
  (or arXiv:2009.13345v1 [astro-ph.GA] for this version)
  https://doi.org/10.48550/arXiv.2009.13345
arXiv-issued DOI via DataCite
Related DOI: https://doi.org/10.1093/mnras/staa3008
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From: Michael L. Balogh [view email]
[v1] Mon, 28 Sep 2020 14:12:59 UTC (26,411 KB)
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