The XXL Survey: XXXVII. The role of the environment in shaping the stellar population properties of galaxies at 0.1<z<0.5

Abstract

Exploiting a sample of galaxies drawn from the XXL-N multiwavelength survey, we present an analysis of the stellar population properties of galaxies at 0.1<z<0.5, by studying galaxy fractions and the star formation rate (SFR)-stellar mass(M) relation. Furthermore, we exploit and compare two parametrisations of environment. When adopting a definition of "global" environment, we consider separately cluster virial/outer members and field galaxies. When considering the "local" environment, we take into account the projected number density of galaxies in a fixed aperture of 1Mpc in the sky. We find that regardless of the environmental definition adopted, the fraction of blue/star-forming galaxies is the highest in the field/least dense regions and the lowest in the virial regions of clusters/highest densities. Furthermore, the fraction of star-forming galaxies is higher than the fraction of blue galaxies, regardless of the environment. This result is particularly evident in the virial cluster regions, most likely reflecting the different star formation histories of galaxies in different environments. Also the overall SFR-M relation does not seem to depend on the parametrisation adopted. Nonetheless, the two definitions of environment lead to different results as far as the fraction of galaxies in transition between the star-forming main sequence and the quenched regime is concerned. In fact, using the local environment the fraction of galaxies below the main sequence is similar at low and high densities, whereas in clusters (and especially within the virial radii) a population with reduced SFR with respect to the field is observed. Our results show that the two parametrisations adopted to describe the environment have different physical meanings, i.e.are intrinsically related to different physical processes acting on galaxy populations and are able to probe different physical scales.

22 pages, 15 figures; accepted for publication in A&A

References in corpus (20)

• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• UV Star Formation Rates in the Local Universe
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• The DEEP2 Galaxy Redshift Survey: The Role of Galaxy Environment in the Cosmic Star-Formation History
• Galaxy And Mass Assembly (GAMA): the G02 field, Herschel-ATLAS target selection and Data Release 3
• LoCuSS: The slow quenching of star formation in cluster galaxies and the need for pre-processing
• On the origin of the faint-end of the red sequence in high density environments
• The VIMOS VLT Deep Survey: The build-up of the colour-density relation
• The relation between star formation, morphology and local density in high redshift clusters and groups
• The XMM Large Scale Structure survey: The X-ray pipeline and survey selection function
• SDSS IV MaNGA - The spatially resolved transition from star formation to quiescence
• A spectrophotometric model applied to cluster galaxies: the WINGS dataset
• ALMA Observations of Gas-Rich Galaxies in z~1.6 Galaxy Clusters: Evidence for Higher Gas Fractions in High-Density Environments
• The star formation history of galaxies: the role of galaxy mass, morphology and environment
• The NOAO Fundamental Plane Survey - III. Variations in the stellar populations of red-sequence galaxies from the cluster core to the virial radius
• Galaxy And Mass Assembly (GAMA): Active Galactic Nuclei in Pairs of Galaxies
• From blue star-forming to red passive: galaxies in transition in different environments
• Galaxy And Mass Assembly (GAMA): The effect of galaxy group environment on active galactic nuclei
• Do cluster properties affect the quenching rate?

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• The GOGREEN survey: The environmental dependence of the star-forming galaxy main sequence at $1.0<z<1.5$
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• The GOGREEN survey: Post-infall environmental quenching fails to predict the observed age difference between quiescent field and cluster galaxies at z>1
• The GOGREEN and GCLASS Surveys: First Data Release
• The Fornax Deep Survey with VST. X. The assembly history of the bright galaxies and intra-group light in the Fornax A subgroup
• The GOGREEN survey: Dependence of galaxy properties on halo mass at z > 1 and implications for environmental quenching
• A few StePS forward in unveiling the complexity of galaxy evolution: light-weighted stellar ages of intermediate redshift galaxies with WEAVE
• HST/WFC3 grism observations of $z\sim 1$ clusters: Evidence for rapid outside-in environmental quenching from spatially resolved H$\alpha$ maps
• The miniJPAS survey: The galaxy populations in the most massive cluster in miniJPAS, mJPC2470-1771
• Galaxy And Mass Assembly: Group and field galaxy morphologies in the star-formation rate - stellar mass plane
• The Local Cluster Survey II: Disk-Dominated Cluster Galaxies with Suppressed Star Formation
• Differences in the Physical Properties of Satellite Galaxies within Relaxed and Disturbed Galaxy Groups and Clusters
• GLACE survey: galaxy activity in ZwCl0024+1652 cluster from strong optical emission lines
• Mechanisms Affecting Galaxies Nearby and Environmental Trends (MAGNET)
• The cosmic environment overtakes the local density in shaping galaxy star formation