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Hα star formation main sequence in cluster and field galaxies at z ∼ 1.6

Nantais, Julie and Wilson, Gillian and Muzzin, Adam and Old, Lyndsay J. and Demarco, Ricardo and Cerulo, Pierluigi and Balogh, Michael and Rudnick, Gregory and Chan, Jeffrey and Cooper, M. C. and Forrest, Ben and Hayden, Brian and Lidman, Chris and Noble, Allison and Perlmutter, Saul and Rhea, Carter and Surace, Jason and van der Burg, Remco and van Kampen, Eelco (2020) Hα star formation main sequence in cluster and field galaxies at z ∼ 1.6. Monthly Notices of the Royal Astronomical Society, 499 (3). pp. 3061-3070. ISSN 0035-8711. doi:10.1093/mnras/staa2872.

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We calculate Hα-based star formation rates and determine the star formation rate–stellar mass relation for members of three Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS) clusters at z ∼ 1.6 and serendipitously identified field galaxies at similar redshifts to the clusters. We find similar star formation rates in cluster and field galaxies throughout our range of stellar masses. The results are comparable to those seen in other clusters at similar redshifts, and consistent with our previous photometric evidence for little quenching activity in clusters. One possible explanation for our results is that galaxies in our z ∼ 1.6 clusters have been accreted too recently to show signs of environmental quenching. It is also possible that the clusters are not yet dynamically mature enough to produce important environmental quenching effects shown to be important at low redshift, such as ram-pressure stripping or harassment.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper ItemKeck Observatory Archive (KOA) Data Access Service
Nantais, Julie0000-0002-7356-0629
Wilson, Gillian0000-0002-6572-7089
Muzzin, Adam0000-0002-9330-9108
Old, Lyndsay J.0000-0003-1205-1318
Demarco, Ricardo0000-0003-3921-2177
Balogh, Michael0000-0003-4849-9536
Rudnick, Gregory0000-0001-5851-1856
Chan, Jeffrey0000-0001-6251-3125
Cooper, M. C.0000-0003-1371-6019
Hayden, Brian0000-0001-9200-8699
Lidman, Chris0000-0003-1731-0497
Noble, Allison0000-0003-1832-4137
Perlmutter, Saul0000-0002-4436-4661
Rhea, Carter0000-0003-2001-1076
Surace, Jason0000-0001-7291-0087
van der Burg, Remco0000-0003-1535-2327
van Kampen, Eelco0000-0002-6327-5154
Additional Information:© 2020 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Accepted 2020 September 15. Received 2020 September 14; in original form 2020 August 31. Published: 30 September 2020. This research uses observations obtained with MegaPrime/MegaCam, a joint project of the Canada-France-Hawaii Telescope (CFHT) and Comisariat a l'Énergie Atomique et aux Énergies Alternatives (CEA)/Dapnia, which is operated by the National Research Council (NRC) of Canada, the Institut National des Sciences de l’Univers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii. This work is based in part on data products produced at TERAPIX and the Canadian Astronomy Data Centre as part of the Canada-France-Hawaii Telescope Legacy Survey, a collaborative project of NRC and CNRS. This project also uses observations taken at the European Southern Observatory (ESO) Paranal Observatory (ESO programs 085.A-0166, 085.A-0613, 086.A-0398, 087.A-0145, 087.A-0483, 088.A-0639, 089.A-0125, and 091.A-0478), Las Campanas Observatory in Chile, the Keck Telescopes in Hawaii, and the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. Our research team recognizes support from the following grants: Universidad Andres Bello internal research project DI-12-19/R (JN), Basal Center for Astrophysics and Associated Technologies (CATA) grant AFB-170002 (RD), and Atacama Large Millimeter Array - Comisión Nacional de Investigación en Ciencia y Tecnología (ALMA-CONICYT) grant no 31180051 (PC). This work was supported in part by National Science Foundation (NSF) grants AST-1517863, AST-1518257, and AST-1815475. Additional support was provided by the National Aeronautics and NASA through grants GO-15294 and AR-14289 from the Space Telescope Science Institute (STSCI), which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. Support is acknowledged from a European Space Agency (ESA) research fellowship (LJO) and by grant number 80NSSC17K0019 issued through the NASA Astrophysics Data Analysis Program (ADAP). Data Availability: The near-IR spectroscopy used in this paper is available to the public on the Keck Observatory Archive (KOA) Data Access Service: Information about the nights of observation is available in the Appendix. To request access to other data, please ask the authors.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Universidad Andres BelloDI-12-19/R
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)31180051
NASANAS 5-26555
European Space Agency (ESA)UNSPECIFIED
Subject Keywords:galaxies: clusters: general, galaxies: evolution
Issue or Number:3
Record Number:CaltechAUTHORS:20210113-105407239
Persistent URL:
Official Citation:Julie Nantais, Gillian Wilson, Adam Muzzin, Lyndsay J Old, Ricardo Demarco, Pierluigi Cerulo, Michael Balogh, Gregory Rudnick, Jeffrey Chan, M C Cooper, Ben Forrest, Brian Hayden, Chris Lidman, Allison Noble, Saul Perlmutter, Carter Rhea, Jason Surace, Remco van der Burg, Eelco van Kampen, The H α star formation main sequence in cluster and field galaxies at z ∼ 1.6, Monthly Notices of the Royal Astronomical Society, Volume 499, Issue 3, December 2020, Pages 3061–3070,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107453
Deposited By: Tony Diaz
Deposited On:13 Jan 2021 20:08
Last Modified:16 Nov 2021 19:03

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