Mass, velocity anisotropy, and pseudo phase-space density profiles of Abell 2142

Abstract

Aim: We aim to compute the mass and velocity anisotropy profiles of Abell 2142 and, from there, the pseudo phase--space density profile $Q(r)$ and the density slope - velocity anisotropy $\beta -\gamma$ relation, and then to compare them with theoretical expectations. Methods: The mass profiles were obtained by using three techniques based on member galaxy kinematics, namely the caustic method, the method of Dispersion - Kurtosis, and MAMPOSSt. Through the inversion of the Jeans equation, it was possible to compute the velocity anisotropy profiles. Results: The mass profiles, as well as the virial values of mass and radius, computed with the different techniques agree with one another and with the estimates coming from X-ray and weak lensing studies. A concordance mass profile is obtained by averaging the lensing, X-ray, and kinematics determinations. The cluster mass profile is well fitted by an NFW profile with $c=4.0\pm 0.5$. The population of red and blue galaxies appear to have a different velocity anisotropy configuration, since red galaxies are almost isotropic, while blue galaxies are radially anisotropic, with a weak dependence on radius. The $Q(r)$ profile for the red galaxy population agrees with the theoretical results found in cosmological simulations, suggesting that any bias, relative to the dark matter particles, in velocity dispersion of the red component is independent of radius. The $\beta -\gamma$ relation for red galaxies matches the theoretical relation only in the inner region. The deviations might be due to the use of galaxies as tracers of the gravitational potential, unlike the non--collisional tracer used in the theoretical relation.

14 pages, 14 figures. Consolidated version including the Corrigendum published on A&A

References in corpus (4)

• The relation between velocity dispersion and mass in simulated clusters of galaxies: dependence on the tracer and the baryonic physics
• A universal density slope - velocity anisotropy relation for relaxed structures
• Velocity dispersion around ellipticals in MOND
• The universal distribution of halo interlopers in projected phase space. Bias in galaxy cluster concentration and velocity anisotropy?

Cited by in corpus (53)

• The galaxy cluster mass scale and its impact on cosmological constraints from the cluster population
• The XMM Cluster Outskirts Project (X-COP)
• Gone after one orbit: How cluster environments quench galaxies
• The stripping of a galaxy group diving into the massive cluster A2142
• The XMM Cluster Outskirts Project (X-COP): Physical conditions to the virial radius of Abell 2142
• Structural and dynamical modeling of WINGS clusters. II. The orbital anisotropies of elliptical, spiral and lenticular galaxies
• The gravitational field of X-COP galaxy clusters
• CLASH-VLT: Abell~S1063. Cluster assembly history and spectroscopic catalogue
• Deep Chandra observations of the stripped galaxy group falling into Abell 2142
• Unusual A2142 supercluster with a collapsing core: distribution of light and mass
• Dynamical mass inference of galaxy clusters with neural flows
• Galaxy Cluster Mass Reconstruction Project - IV. Understanding the effects of imperfect membership on cluster mass estimation
• The dynamics of z~1 clusters of galaxies from the GCLASS survey
• Inside a Beehive: the Multiple Merging Processes in the Galaxy Cluster Abell 2142
• Galaxy Kinematics and Mass Calibration in Massive SZE Selected Galaxy Clusters to z=1.3
• Mass Calibration of the CODEX Cluster Sample using SPIDERS Spectroscopy -- I. The Richness-Mass Relation
• SPIDERS: An Overview of The Largest Catalogue of Spectroscopically Confirmed X-ray Galaxy Clusters
• Deep spectroscopy in nearby galaxy clusters: III Orbital structure of galaxies in Abell 85
• Supercluster A2142 and collapse in action - infalling and merging groups and galaxy transformations
• Infalling groups and galaxy transformations in the cluster A2142
• The GOGREEN survey: the internal dynamics of clusters of galaxies at redshift 0.9-1.4
• Characteristic density contrasts in the evolution of superclusters. The case of A2142 supercluster
• Phase-space structure of cold dark matter halos inside splashback: multi-stream flows and self-similar solution
• Numerical simulations challenged on the prediction of massive subhalo abundance in galaxy clusters: the case of Abell 2142
• What to expect from dynamical modelling of cluster haloes I. The information content of different dynamical tracers
• Anisotropic q-Gaussian velocity distributions in LambdaCDM halos
• The Kinematics of Cluster Galaxies via Velocity Dispersion Profiles
• A Complete Spectroscopic Census of Abell 2029: A Tale of Three Histories
• Dynamical analysis of clusters of galaxies from cosmological simulations
• Fossil group origins. XI. The dependence of galaxy orbits on the magnitude gap
• Mass Calibration of the CODEX Cluster Sample using SPIDERS Spectroscopy -- II. The X-ray Luminosity-Mass Relation
• Self-gravitating Equilibria of Non-minimally Coupled Dark Matter Halos
• Abell 315: reconciling cluster mass estimates from kinematics, X-ray, and lensing
• Cosmology with Galaxy Cluster Properties using Machine Learning
• Nonthermal Pressure in the Outskirts of Abell 2142
• Combining Strong Lensing and Dynamics in Galaxy Clusters: integrating MAMPOSSt within LENSTOOL I. Application on SL2S J02140-0535
• On the Apparent Power Law in CDM Halo Pseudo Phase Space Density Profiles
• Reconstruction of the two-dimensional gravitational potential of galaxy clusters from X-ray and Sunyaev-Zel'dovich measurements
• Deriving galaxy cluster velocity anisotropy profiles from a joint analysis of dynamical and weak lensing data
• Power law pseudo phase-space density profiles of dark matter halos: fluke of physics?
• Deprojecting galaxy-cluster cold fronts: evidence for bulk, magnetised spiral flows
• CLASH-VLT: Galaxy cluster MACS J0329-0211 and its surroundings using galaxies as kinematic tracers
• CHEX-MATE: exploring the kinematical properties of Planck galaxy clusters
• Unravelling the orbits of cluster galaxy populations according to their dominant gas ionization source
• Advection by large-scale spiral flows in galaxy clusters
• Shape and connectivity of groups and clusters: Impact of dynamical state and accretion history
• Structural and dynamical modeling of WINGS clusters. III. The pseudo phase-space density profile
• Tracing gaseous filaments connected to galaxy clusters: the case study of Abell 2744
• Constraining the magnetic field in the galaxy cluster Abell 2142 using MeerKAT L-band polarisation data
• Does the Corona Borealis Supercluster form a giant binary-like system?
• CLASH-VLT: The variance in the velocity anisotropy profiles of galaxy clusters
• A group of merging galaxies falling onto Abell 2142
• The origin of ionized gas in retired galaxies: dynamical clues