The distribution of lenticular galaxies in the phase space of present-day galaxy cluster regions

Abstract

We investigate the environmental impact of cluster regions on the evolution of nearby S0 galaxies, focusing on their distinct quiescent and star-forming (SF) subpopulations. We select a sample of clusters by crossmatching optical and X-ray data and extract a subset of 14 systems with maximally relaxed cores by applying strict virialization and substructure tests. A projected phase space (PPS) diagram is generated from the stack of relaxed clusters up to 3 virial radii to assess the locations of quiescent and SF S0s and their cluster infall histories. Additionally, we compare the radial line-of-sight velocity dispersion (VDLOS) and specific star-formation rate (SSFR) profiles for the different S0 subpopulations, using other Hubble types as benchmarks. Our study shows that quiescent S0s, the dominant class in the entire cluster region, concentrate preferentially at low radii in the PPS diagram, while SF S0s are more abundant in the outskirts. Despite this segregation, both subpopulations show similar VDLOS profiles in the cluster core -indicating an advanced stage of dynamical relaxation-, but that resemble those of late-type galaxies beyond the virial radius. This finding, combined with the distinct PPS distributions of both S0 subpopulations, which lead to mean infall times $\sim 1$ Gyr longer for quiescent S0s but that are shorter than those expected for ancient infallers, suggests that a substantial fraction of S0s present in the core region arrive via secondary infall. We also find evidence in the SSFR profiles that star formation in S0s begins to decline beyond the virialized core, likely due to preprocessing in infalling groups. Our results support a delayed-then-rapid quenching scenario for SF S0s in cluster regions, where their centrally concentrated star formation persists for an extended period before abruptly ending ($\lesssim 0.1$ Gyr) after their first pericenter passage.

arXiv commentAccepted for publication in A&A. Source added. 19 pages, 11 figures, and 4 tables

References in corpus (55)

• The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
• Statistical Properties of X-ray Clusters: Analytic and Numerical Comparisons
• SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
• Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample
• Evolution since z = 0.5 of the Morphology-Density relation for Clusters of Galaxies
• The Origin of Star Formation Gradients in Rich Galaxy Clusters
• Concentration, Spin and Shape of Dark Matter Haloes as a Function of the Cosmological Model: WMAP1, WMAP3 and WMAP5 results
• Gone with the wind: the origin of S0 galaxies in clusters
• Galaxy evolution in groups and clusters: satellite star formation histories and quenching timescales in a hierarchical Universe
• Dust Attenuation Curves in the Local Universe: Demographics and New Laws for Star-forming Galaxies and High-redshift Analogs
• Dark Matter Halos within Clusters
• On the Survival and Destruction of Spiral Galaxies in Clusters
• GALEX-SDSS-WISE Legacy Catalog (GSWLC): Star Formation Rates, Stellar Masses and Dust Attenuations of 700,000 Low-redshift Galaxies
• An Objective Definition for the Main Sequence of Star-Forming Galaxies
• Improving galaxy morphologies for SDSS with Deep Learning
• UV-optical colours as probes of early-type galaxy evolution
• The accretion of galaxies into groups and clusters
• The Assembly of Galaxies in a Hierarchically Clustering Universe
• The evolution of the galactic morphological types in clusters
• Evidence for X-ray emission from a large-scale filament of galaxies ?
• Infall Regions of Galaxy Clusters
• The evolution of substructure III: the outskirts of clusters
• Stellar velocity dispersions and emission line properties of SDSS-III/BOSS galaxies
• Phase-space Analysis in the Group and Cluster environment: Time since Infall and Tidal Mass Loss
• The Assembly of Galaxy Clusters
• Merging groups and clusters of galaxies from the SDSS data. The catalogue of groups and potentially merging systems
• The evolution of spiral, S0 and elliptical galaxies in clusters
• Velocity dispersion around ellipticals in MOND
• Spectroscopy of clusters in the ESO Distant Cluster Survey (EDisCS)
• The Stellar Populations of Stripped Spiral Galaxies in the Virgo Cluster
• Slow quenching of star formation in OMEGAWINGS clusters: galaxies in transition in the local universe
• SDSS-IV MaNGA: The Formation Sequence of S0 Galaxies
• Formation of S0 galaxies through mergers. Morphological properties: tidal relics, lenses, ovals, and other inner components
• Formation of S0 galaxies through mergers: Explaining angular momentum and concentration change from spirals to S0s
• The Relation Between Galaxy Morphology and Environment in the Local Universe: An RC3-SDSS Picture
• YZiCS: Unveiling Quenching History of Cluster Galaxies Using Phase-space Analysis
• Formation of S0 galaxies through mergers. Evolution in the Tully-Fisher relation since $z\sim 1$
• The two formation pathways of S0 galaxies
• The SAMI Galaxy Survey: A Range in S0 Properties Indicating Multiple Formation Pathways
• The X-CLASS survey: A catalogue of 1646 X-ray-selected galaxy clusters up to z$\sim$1.5
• An X-ray selected catalog of extended galaxy clusters from the ROSAT All-Sky Survey (RXGCC)
• The Role of Groups in Galaxy Evolution: compelling evidence of pre-processing out to the turnaround radius of clusters
• Galaxy properties as revealed by MaNGA. III. Kinematic profiles and stellar population gradients in S0s
• Emission Line Galaxies and Active Galactic Nuclei in WINGS clusters
• The Nuclear Activities of Nearby S0 Galaxies
• Shape of the Galactic Orbits in Clusters
• The local universe in the era of large surveys. I. Spectral classification of S0 galaxies
• Formation of S0s in extreme environments III: the role of environment in the formation pathways
• The Kinematics of Cluster Galaxies via Velocity Dispersion Profiles
• The X-ray-Optical Relations for Nine Clusters at z = 0.7-1.1
• The Local Cluster Survey II: Disk-Dominated Cluster Galaxies with Suppressed Star Formation
• Impact of Galaxy Mergers on the Colours of Cluster Galaxies
• The local Universe in the era of large surveys -- II. Multi-wavelength characterisation of activity in nearby S0 galaxies
• Fitting functions for a disk-galaxy model with different LCDM-halo profiles
• Growth of Ex-situ Diffuse Intragroup Light in Simulated Galaxy Groups