Velocity dispersion and dynamical mass for 270 galaxy clusters in the Planck PSZ1 catalogue

Abstract

We present the velocity dispersion and dynamical mass estimates for 270 galaxy clusters included in the first Planck Sunyaev-Zeldovich (SZ) source catalogue, the PSZ1. Part of the results presented here were achieved during a two-year observational program, the ITP, developed at the Roque de los Muchachos Observatory (La Palma, Spain). In the ITP we carried out a systematic optical follow-up campaign of all the 212 unidentified PSZ1 sources in the northern sky that have a declination above $-15^{\circ }$ and are without known counterparts at the time of the publication of the catalogue. We present for the first time the velocity dispersion and dynamical mass of 58 of these ITP PSZ1 clusters, plus 35 newly discovered clusters that are not associated with the PSZ1 catalogue. Using Sloan Digital Sky Survey (SDSS) archival data, we extend this sample, including 212 already confirmed PSZ1 clusters in the northern sky. Using a subset of 207 of these galaxy clusters, we constrained the $M_{\mathrm{SZ}}$--$M_{\mathrm{dyn}}$ scaling relation, finding a mass bias of $(1-B)=0.83\pm 0.07$(stat)$\pm 0.02$(sys). We show that this value is consistent with other results in the literature that were obtained with different methods (X-ray, dynamical masses, or weak-lensing mass proxies). This result cannot dissolve the tension between primordial cosmic microwave background anisotropies and cluster number counts in the ${\Omega }_{\mathrm{M}}$--${\sigma }_8$ plane.

23 pages, 11 figures

References in corpus (10)

• Some Aspects of Measurement Error in Linear Regression of Astronomical Data
• The Canadian Cluster Comparison Project: detailed study of systematics and updated weak lensing masses
• Virial Scaling of Massive Dark Matter Halos: Why Clusters Prefer a High Normalization Cosmology
• The galaxy cluster mass scale and its impact on cosmological constraints from the cluster population
• The relation between velocity dispersion and mass in simulated clusters of galaxies: dependence on the tracer and the baryonic physics
• The universal distribution of halo interlopers in projected phase space. Bias in galaxy cluster concentration and velocity anisotropy?
• Planck Sunyaev-Zel'dovich Cluster Mass Calibration using Hyper Suprime-Cam Weak Lensing
• Nature versus Nurture: The curved spine of the galaxy cluster X-ray luminosity -- temperature relation
• Biases in galaxy cluster velocity dispersion and mass estimates in the small number of galaxies regime
• Optical validation and characterisation of Planck PSZ1 sources at the Canary Islands observatories. II. Second year of ITP13 observations

Cited by in corpus (11)

• Velocity dispersion and dynamical masses for 388 Galaxy Clusters and groups. Calibrating the $M_{\mathrm{SZ}}$--$M_{\mathrm{dyn}}$ scaling relation for the PSZ2 sample
• NOEMA formIng Cluster survEy (NICE): Characterizing eight massive galaxy groups at $1.5<z<4$ in the COSMOS field
• Exploring the mass and redshift dependence of the cluster pressure profile with stacks on thermal SZ maps
• The hydrostatic-to-lensing mass bias from resolved X-ray and optical-IR data
• Mass bias and cosmological constraints from Planck cluster clustering
• CHEX-MATE: exploring the kinematical properties of Planck galaxy clusters
• Boosting the evolutionary picture of Cl 0024+17 and MS 0451-03: A case study at intermediate-redshift
• Constraints on dark matter models from the stellar cores observed in ultra-faint dwarf galaxies: Self-interacting dark matter
• Velocity dispersion functions of pressure-supported galaxies in EAGLE simulations with varying active galactic nucleus feedback
• Circular Mystery: Exploring Diffuse Emission Surrounding a Radio Galaxy with uGMRT and VLA Multiwavelength Observations
• The Limits of Photometric Dynamics: Benchmarking Cluster Relaxation Diagnostics