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Gemini Observations of Galaxies in Rich Early Environments (GOGREEN) I: survey description

Balogh, Michael L. and Rettura, Alessandro and Wetzel, Andrew (2017) Gemini Observations of Galaxies in Rich Early Environments (GOGREEN) I: survey description. Monthly Notices of the Royal Astronomical Society, 470 (4). pp. 4168-4185. ISSN 0035-8711. doi:10.1093/mnras/stx1370.

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We describe a new Large Program in progress on the Gemini North and South telescopes: Gemini Observations of Galaxies in Rich Early Environments (GOGREEN). This is an imaging and deep spectroscopic survey of 21 galaxy systems at 1 < z < 1.5, selected to span a factor >10 in halo mass. The scientific objectives include measuring the role of environment in the evolution of low-mass galaxies, and measuring the dynamics and stellar contents of their host haloes. The targets are selected from the SpARCS, SPT, COSMOS, and SXDS surveys, to be the evolutionary counterparts of today's clusters and groups. The new red-sensitive Hamamatsu detectors on GMOS, coupled with the nod-and-shuffle sky subtraction, allow simultaneous wavelength coverage over λ ∼ 0.6–1.05 μm, and this enables a homogeneous and statistically complete redshift survey of galaxies of all types. The spectroscopic sample targets galaxies with AB magnitudes z΄ < 24.25 and [3.6] μm < 22.5, and is therefore statistically complete for stellar masses M* ≳ 10^(10.3) M⊙, for all galaxy types and over the entire redshift range. Deep, multiwavelength imaging has been acquired over larger fields for most systems, spanning u through K, in addition to deep IRAC imaging at 3.6 μm. The spectroscopy is ∼50 per cent complete as of semester 17A, and we anticipate a final sample of ∼500 new cluster members. Combined with existing spectroscopy on the brighter galaxies from GCLASS, SPT, and other sources, GOGREEN will be a large legacy cluster and field galaxy sample at this redshift that spectroscopically covers a wide range in stellar mass, halo mass, and clustercentric radius.

Item Type:Article
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URLURL TypeDescription Paper
Rettura, Alessandro0000-0002-5615-256X
Wetzel, Andrew0000-0003-0603-8942
Additional Information:© 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2017 May 31. Received 2017 May 29; in original form 2017 May 3. Published: 03 June 2017. We extend our thanks and appreciation to Gemini, and the Gemini communities, for supporting this Large Program. We also thank Gemini for their support of junior observers on several of our observing runs. This research is supported by the following grants: NSERC Discovery grants (MLB and LCP); Universidad Andrés Bello internal project grants DI-651-15/R and DI-18-17/RG (JN); NSF grants AST-1517815 and AST-1211358 (GHR), AST-1517863 (GW) and AST-1518257 (MCC); NASA, through grants AR-14310.001 and GO-12945.001-A (GHR), GO-13306, GO-13677, GO-13747 and GO-13845/14327 (GW), AR-13242 and AR-14289 (MCC) and HST-GO-14734 (AW) from the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555; STFC (SLM); the BASAL Center for Astrophysics and Associated Technologies (CATA), and FONDECYT grant no. 1130528 (RD); the European Research Council under FP7 grant number 340519 (RFJvdB); the National Research Foundation of South Africa (DGG); Chandra grant AR6-17014B (AFF); and FONDECYT postdoctoral research grant no. 3160375 (PC). AW was also supported by a Caltech-Carnegie Fellowship, in part through the Moore Center for Theoretical Cosmology and Physics at Caltech. GHR also acknowledges the hospitality and financial support of the Max-Planck-Institute for Extraterrestrial Physics, the European Southern Observatory and the International Space Sciences Institute as well as the hospitality of the Max-Planck-Institute for Astronomy and Hamburg Observatory. This paper includes data gathered with the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), Ministerio de Ciencia, Tecnologa e Innovacin Productiva (Argentina), and Ministrio da Ciłncia, Tecnologia e Inovao (Brazil); the 6.5 metre Magellan Telescopes located at Las Campanas Observatory, Chile; the Canada–France–Hawaii Telescope (CFHT) which is operated by the National Research Council of Canada, the Institut National des Sciences de l'Univers of the Centre National de la Recherche Scientifique of France, and the University of Hawaii; MegaPrime/MegaCam, a joint project of CFHT and CEA/DAPNIA; Subaru Telescope, which is operated by the National Astronomical Observatory of Japan; and the ESO Telescopes at the La Silla Paranal Observatory under programme ID 097.A-0734.
Group:Infrared Processing and Analysis Center (IPAC), TAPIR
Funding AgencyGrant Number
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Universidad Andrés BelloDI-651-15/R
Universidad Andrés BelloDI-18-17/RG
NASANAS 5-26555
Science and Technology Facilities Council (STFC)UNSPECIFIED
BASAL Center for Astrophysics and Associated Technologies (CATA)UNSPECIFIED
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1130528
European Research Council (ERC)340519
National Research Foundation of South AfricaUNSPECIFIED
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)3160375
Caltech-Carnegie FellowshipUNSPECIFIED
European Southern ObservatoryUNSPECIFIED
International Space Sciences InstituteUNSPECIFIED
Subject Keywords:galaxies: clusters: general – galaxies: evolution
Issue or Number:4
Record Number:CaltechAUTHORS:20170914-140400764
Persistent URL:
Official Citation:Michael L. Balogh, David G. Gilbank, Adam Muzzin, Gregory Rudnick, Michael C. Cooper, Chris Lidman, Andrea Biviano, Ricardo Demarco, Sean L. McGee, Julie B. Nantais, Allison Noble, Lyndsay Old, Gillian Wilson, Howard K. C. Yee, Callum Bellhouse, Pierluigi Cerulo, Jeffrey Chan, Irene Pintos-Castro, Rane Simpson, Remco F. J. van der Burg, Dennis Zaritsky, Felicia Ziparo, María Victoria Alonso, Richard G. Bower, Gabriella De Lucia, Alexis Finoguenov, Diego Garcia Lambas, Hernan Muriel, Laura C. Parker, Alessandro Rettura, Carlos Valotto, Andrew Wetzel; Gemini Observations of Galaxies in Rich Early Environments (GOGREEN) I: survey description, Monthly Notices of the Royal Astronomical Society, Volume 470, Issue 4, 1 October 2017, Pages 4168–4185,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81451
Deposited By: Tony Diaz
Deposited On:14 Sep 2017 21:41
Last Modified:15 Nov 2021 19:43

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