Abstract
We quantify the star formation (SF) in the inner cores (R/R200 ≤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∗> 1010 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 (F) of star-forming galaxies (SFGs) and the rate at which they form stars (SFR and sSFR =SFRM∗). On average, the F of SFGs is a factor ∼2 smaller in cluster cores than in the field. Furthermore, SFGs present average SFR and SFR 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.
Original language | English (US) |
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Pages (from-to) | 586-619 |
Number of pages | 34 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 485 |
Issue number | 1 |
DOIs | |
State | Published - May 1 2019 |
Keywords
- catalogues
- galaxies: clusters: general
- galaxies: evolution
- galaxies: star formation
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
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Star formation in galaxy cluster cores
Rodriguez-Munoz, L. (Contributor), Rodighiero, G. (Creator), Mancini, C. (Creator), Perez-Gonzalez, P. G. (Contributor), Rawle, T. D. (Creator), Egami, E. (Creator), Mercurio, A. (Creator), Rosati, P. (Creator), Puglisi, A. (Creator), Franceschini, A. (Creator), Balestra, I. (Creator), Baronchelli, I. (Creator), Biviano, A. (Creator), Ebeling, H. (Creator), Edge, A. C. (Creator), Enia, A. F. M. (Contributor), Grillo, C. (Creator), Haines, C. P. (Creator), Iani, E. (Creator), Jones, T. (Creator), Nonino, M. (Creator), Valtchanov, I. (Creator), Vulcani, B. (Creator) & Zemcov, M. (Creator), Centre de Donnees Strasbourg (CDS), 2022
DOI: 10.26093/cds/vizier.74850586, https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/485/586
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