TY - JOUR
T1 - The GOGREEN survey
T2 - Transition galaxies and the evolution of environmental quenching
AU - McNab, Karen
AU - Balogh, Michael L.
AU - van der Burg, Remco F.J.
AU - Forestell, Anya
AU - Webb, Kristi
AU - Vulcani, Benedetta
AU - Rudnick, Gregory
AU - Muzzin, Adam
AU - Cooper, M. C.
AU - McGee, Sean
AU - Biviano, Andrea
AU - Cerulo, Pierluigi
AU - Chan, Jeffrey C.C.
AU - de Lucia, Gabriella
AU - Demarco, Ricardo
AU - Finoguenov, Alexis
AU - Forrest, Ben
AU - Golledge, Caelan
AU - Jablonka, Pascale
AU - Lidman, Chris
AU - Nantais, Julie
AU - Old, Lyndsay
AU - Pintos-Castro, Irene
AU - Poggianti, Bianca
AU - Reeves, Andrew M.M.
AU - Wilson, Gillian
AU - Yee, Howard K.C.
AU - Zaritsky, Dennis
N1 - Funding Information:
Data products were used from observations made with ESO Telescopes at the La Silla Paranal Observatory under ESO programme ID 179.A-2005 and on data products produced by TERAPIX and the Cambridge Astronomy Survey Unit on behalf of the UltraVISTA consortium. As well, this study makes use of observations taken by the 3D-HST Treasury Program (GO 12177 and 12328) with the NASA/ESA HST, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. MB gratefully acknowledges support from the NSERC Discovery Grant program. BV acknowledges financial contribution from the grant PRIN MIUR 2017 n.20173ML3WW 001 (PI Cimatti) and from the INAF main-stream funding programme (PI Vulcani). GW acknowledges support from the National Science Foundation through grant AST-1517863, HST program number GO-15294, and grant number 80NSSC17K0019 issued through the NASA Astrophysics Data Analysis Program (ADAP). Support for program number GO-15294 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. GR thanks the International Space Science Institute (ISSI) for providing financial support and a meeting facility that inspired insightful discussions for team ‘COSWEB: The Cosmic Web and Galaxy Evolution’. GR acknowledges support from the National Science Foundation grants AST-1517815, AST-1716690, and AST-1814159, NASA HST grant AR-14310, and NASA ADAP grant 80NSSC19K0592. GR also acknowledges the support of an ESO visiting science fellowship. This work was supported in part by NSF grants AST-1815475 and AST-1518257. RD gratefully acknowledges support from the Chilean Centro de Excelencia en Astrofísica y Tecnologías Afines (CATA) BASAL grant AFB-170002. JN received support from Universidad Andrés Bello internal grant DI-12-19/R. KW acknowledges support from NSERC through a CGS-D award.
Publisher Copyright:
© 2021 The Author(s).
PY - 2021/11/1
Y1 - 2021/11/1
N2 - We measure the rate of environmentally driven star formation quenching in galaxies at z ∼ 1, using eleven massive (M ≈ 2 × 1014 M☉) 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 (log M/M☉ > 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 < log M/M☉ < 10.5) there is a small but significant excess of transition galaxies in clusters, accounting for an additional ∼5–10 per cent of the population compared with the field. We show that our data are consistent with a scenario in which 20–30 per cent 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 (τ < 1 Gyr) decline in star formation rate.
AB - We measure the rate of environmentally driven star formation quenching in galaxies at z ∼ 1, using eleven massive (M ≈ 2 × 1014 M☉) 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 (log M/M☉ > 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 < log M/M☉ < 10.5) there is a small but significant excess of transition galaxies in clusters, accounting for an additional ∼5–10 per cent of the population compared with the field. We show that our data are consistent with a scenario in which 20–30 per cent 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 (τ < 1 Gyr) decline in star formation rate.
KW - Galaxies: clusters: general
KW - Galaxies: evolution
KW - Galaxies: star formation
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U2 - 10.1093/mnras/stab2558
DO - 10.1093/mnras/stab2558
M3 - Article
AN - SCOPUS:85117134163
SN - 0035-8711
VL - 508
SP - 157
EP - 174
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 1
ER -