CaltechAUTHORS
Published May 2019 | Version Published + Accepted Version + Supplemental Material
Journal Article Open

Quantifying the suppression of the (un)-obscured star formation in galaxy cluster cores at 0.2 ≲ z ≲ 0.9

Creators

  • 1. ROR icon University of Padua
  • 2. ROR icon Complutense University of Madrid
  • 3. ROR icon Centro de Astrobiología
  • 4. ROR icon Space Telescope Science Institute
  • 5. ROR icon University of Arizona
  • 6. ROR icon Astronomical Observatory of Capodimonte
  • 7. ROR icon University of Ferrara
  • 8. ROR icon CEA Saclay
  • 9. ROR icon Ludwig-Maximilians-Universität München
  • 10. ROR icon Infrared Processing and Analysis Center
  • 11. ROR icon Trieste Astronomical Observatory
  • 12. ROR icon University of Hawaii at Manoa
  • 13. ROR icon Durham University
  • 14. ROR icon University of Copenhagen
  • 15. ROR icon University of Milan
  • 16. ROR icon Brera Astronomical Observatory
  • 17. ROR icon University of California, Davis
  • 18. ROR icon European Space Astronomy Centre
  • 19. ROR icon Osservatorio Astronomico di Padova
  • 20. ROR icon Rochester Institute of Technology

Abstract

We quantify the star formation (SF) in the inner cores (⁠R/R_(200) ≤0.3) of 24 massive galaxy clusters at 0.2≲ z ≲0.9 observed by the Herschel Lensing Survey and the Cluster Lensing and Supernova survey with Hubble. These programmes, covering the rest-frame ultraviolet to far-infrared regimes, allow us to accurately characterize stellar mass-limited (⁠M∗ > 10^(10) M⊙) samples of star-forming cluster members (not)-detected in the mid- and/or far-infrared. We release the catalogues with the photometry, photometric redshifts, and physical properties of these samples. We also quantify the SF displayed by comparable field samples from the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey. We find that in intermediate-z cluster cores, the SF activity is suppressed with respect the field in terms of both the fraction (⁠FF⁠) of star-forming galaxies (SFGs) and the rate at which they form stars (⁠sSFR = SFR/M∗⁠). On average, the F of SFGs is a factor ∼2 smaller in cluster cores than in the field. Furthermore, SFGs present average SFR and sSFR typically ∼0.3 dex smaller in the clusters than in the field along the whole redshift range probed. Our results favour long time-scale quenching physical processes as the main driver of SF suppression in the inner cores of clusters since z ∼0.9, with shorter time-scale processes being very likely responsible for a fraction of the missing SFG population.

Additional Information

© 2019 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 (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model). Accepted 2018 December 5. Received 2018 October 31; in original form 2018 February 8. Published: 07 February 2019. The authors thank Françoise Combes, Carlos López-Sanjuan, Dieter Lutz, Bianca Poggianti, and Alvio Renzini for their suggestions to improve this work. We acknowledge funding from the INAF PRIN-SKA 2017 program 1.05.01.88.04. LR-M acknowledges funding support from the Università degli studi di Padova – Dipartimento di Fisica e Astronomia 'G. Galilei'. GR and CM acknowledge support from an INAF PRIN-SKA 2017 grant. PGP-G acknowledges funding support from the Spanish Government MINECO under grants AYA2015-70815-ERC and AYA2015-63650-P. ACE acknowledges support from STFC grant ST/P00541/1. AM acknowledges funding from the INAF PRIN-SKA 2017 program 1.05.01.88.04. Analyses were performed in R 3.4.0 (R Core Team 2018).

Attached Files

Published - sty3335.pdf

Accepted Version - 1812.08804.pdf

Supplemental Material - sty3335_supplemental_file.pdf

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Additional details

Identifiers

Eprint ID
95735
Resolver ID
CaltechAUTHORS:20190523-105338426

Related works

Describes
https://arxiv.org/abs/1812.08804 (URL)

Funding

Istituto Nazionale di Astrofisica (INAF)
1.05.01.88.04
Università degli studi di Padova
Istituto Nazionale di Astrofisica (INAF)
PRIN-SKA 2017
Ministerio de Economía, Industria y Competitividad (MINECO)
AYA2015-70815-ERC
Ministerio de Economía, Industria y Competitividad (MINECO)
AYA2015-63650-P
Science and Technology Facilities Council (STFC)
ST/P00541/1

Dates

Created
2019-05-23
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field

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Caltech groups
Infrared Processing and Analysis Center (IPAC)