The GOGREEN survey : transition galaxies and the evolution of environmental quenching

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McNab , K , Balogh , M L , van der Burg , R F J , Forestell , A , Webb , K , Vulcani , B , Rudnick , G , Muzzin , A , Cooper , M C , McGee , S , Biviano , A , Cerulo , P , Chan , J C C , De Lucia , G , Demarco , R , Finoguenov , A , Forrest , B , Golledge , C , Jablonka , P , Lidman , C , Nantais , J , Old , L , Pintos-Castro , I , Poggianti , B , Reeves , A M M , Wilson , G , Yee , H K C & Zaritsky , D 2021 , ' The GOGREEN survey : transition galaxies and the evolution of environmental quenching ' , Monthly Notices of the Royal Astronomical Society , vol. 508 , no. 1 , pp. 157-174 . https://doi.org/10.1093/mnras/stab2558

Title: The GOGREEN survey : transition galaxies and the evolution of environmental quenching
Author: McNab, Karen; Balogh, Michael L.; van der Burg, Remco F. J.; Forestell, Anya; Webb, Kristi; Vulcani, Benedetta; Rudnick, Gregory; Muzzin, Adam; Cooper, M. C.; McGee, Sean; Biviano, Andrea; Cerulo, Pierluigi; Chan, Jeffrey C. C.; De Lucia, Gabriella; Demarco, Ricardo; Finoguenov, Alexis; Forrest, Ben; Golledge, Caelan; Jablonka, Pascale; Lidman, Chris; Nantais, Julie; Old, Lyndsay; Pintos-Castro, Irene; Poggianti, Bianca; Reeves, Andrew M. M.; Wilson, Gillian; Yee, Howard K. C.; Zaritsky, Dennis
Other contributor: University of Helsinki, Department of Physics
Date: 2021-11
Language: eng
Number of pages: 18
Belongs to series: Monthly Notices of the Royal Astronomical Society
ISSN: 0035-8711
DOI: https://doi.org/10.1093/mnras/stab2558
URI: http://hdl.handle.net/10138/336503
Abstract: We measure the rate of environmentally driven star formation quenching in galaxies at z similar to 1, using eleven massive () galaxy clusters spanning a redshift range 1.0 < z < 1.4 from the GOGREEN sample. We identify three different types of transition galaxies: 'green valley' (GV) galaxies identified from their rest-frame (NUV - V) and (V - J) colours; 'blue quiescent' (BQ) galaxies, found at the blue end of the quiescent sequence in (U - V) and (V - J) colour; and spectroscopic post-starburst (PSB) galaxies. We measure the abundance of these galaxies as a function of stellar mass and environment. For high-stellar mass galaxies (logM/M-circle dot > 10.5) we do not find any significant excess of transition galaxies in clusters, relative to a comparison field sample at the same redshift. It is likely that such galaxies were quenched prior to their accretion in the cluster, in group, filament, or protocluster environments. For lower stellar mass galaxies (9.5 < logM/M-circle dot < 10.5) there is a small but significant excess of transition galaxies in clusters, accounting for an additional similar to 5-10 percent of the population compared with the field. We show that our data are consistent with a scenario in which 20-30 percent of low-mass, star-forming galaxies in clusters are environmentally quenched every Gyr, and that this rate slowly declines from z = 1 to z = 0. While environmental quenching of these galaxies may include a long delay time during which star formation declines slowly, in most cases this must end with a rapid (tau < 1Gyr) decline in star formation rate.
Subject: galaxies: evolution
galaxies: star formation
galaxies: clusters: general
POST-STARBURST GALAXIES
STELLAR-MASS FUNCTION
STAR-FORMATION RATES
SIMILAR-TO 1
RED-SEQUENCE
SPECTROSCOPIC CONFIRMATION
FORMATION HISTORIES
DISTANT CLUSTERS
LUMINOSITY FUNCTION
QUIESCENT GALAXIES
114 Physical sciences
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