The impact of halo concentration on the Sunyaev Zel'dovich effect signal from massive galaxy clusters

Abstract

The Sunyaev Zel'dovich (SZ) effect is sensitive to the pressure of ionized gas inside galaxy clusters, which is in turn controlled largely by the gravitational potential of the cluster. Changing the concentration parameter describing the cluster mass distribution impacts the gravitational potential and thus the cluster SZ signal, with implications for cosmological and other analyses of SZ-selected clusters. We investigate the concentration-SZ relation in theory and simulations. We find that the impact of concentration on the inner SZ profile ($R\lesssim 0.75R_{200c}$) can be captured with standard polytropic gas models. However, we find that such models do a poor job of reproducing the outer SZ profiles ($R\gtrsim 0.75R_{200c}$) and the relation between the integrated SZ signal, $Y$, and concentration. This disagreement results from a sharp truncation of the gas pressure profile near the splashback radius, likely caused by virial shocks. We develop a simple description of the truncation that leads to a good match with the simulated SZ profiles out to several $R_{200c}$ for clusters of varying mass and concentration, and that also accurately predicts the concentration-$Y$ relationship. Finally, we determine how inference of the linear bias parameter and splashback radius for SZ-selected clusters can be biased by ignoring the concentration dependence of the SZ signal, finding that bias to the former is essentially negligible, while bias to the latter can be as much as 2\%.

arXiv comment16 pages, 11 figures; replaced to match version accepted by MNRAS. Revised version uses an updated model for nonthermal pressure support, but conclusions are not impacted

References in corpus (80)

• Planck 2015 results. XIII. Cosmological parameters
• The Structure of Cold Dark Matter Halos
• The cosmological simulation code GADGET-2
• Statistical Properties of X-ray Clusters: Analytic and Numerical Comparisons
• Halo Models of Large Scale Structure
• Toward a halo mass function for precision cosmology: the limits of universality
• The Simons Observatory: Science goals and forecasts
• Simba: Cosmological Simulations with Black Hole Growth and Feedback
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• MultiDark simulations: the story of dark matter halo concentrations and density profiles
• Cold dark matter haloes in the Planck era: evolution of structural parameters for Einasto and NFW profiles
• The effect of photo-ionization on the cooling rates of enriched, astrophysical plasmas
• Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
• Ahf: Amiga's Halo Finder
• Tracing cosmic evolution with clusters of galaxies
• Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey
• The Dependence of Halo Clustering on Halo Formation History, Concentration, and Occupation
• COLOSSUS: A python toolkit for cosmology, large-scale structure, and dark matter halos
• What is a Cool-Core Cluster? A Detailed Analysis of the Cores of the X-ray Flux-Limited HIFLUGCS Cluster Sample
• Rotation-Dependent Catastrophic Disruption of Gravitational Aggregates
• Dependence of the outer density profiles of halos on their mass accretion rate
• Residual Gas Motions in the Intracluster Medium and Bias in Hydrostatic Measurements of Mass Profiles of Clusters
• The Sunyaev-Zel'dovich angular power spectrum as a probe of cosmological parameters
• Baryon effects on the internal structure of LCDM halos in the EAGLE simulations
• Chemical enrichment of galaxy clusters from hydrodynamical simulations
• Cluster Cosmology Constraints from the 2500 deg${}^2$ SPT-SZ Survey: Inclusion of Weak Gravitational Lensing Data from Magellan and the Hubble Space Telescope
• The Atacama Cosmology Telescope: A Catalog of > 4000 Sunyaev-Zel'dovich Galaxy Clusters
• Halo Assembly Bias in Hierarchical Structure Formation
• An accurate physical model for halo concentrations
• The Three Hundred project: a large catalogue of theoretically modelled galaxy clusters for cosmological and astrophysical applications
• Splashback in accreting dark matter halos
• Universal gas density and temperature profile
• On the Cluster Physics of Sunyaev-Zel'dovich Surveys II: Deconstructing the Thermal SZ Power Spectrum
• Cool Core Clusters from Cosmological Simulations
• Impact of Cluster Physics on the Sunyaev-Zel'dovich Power Spectrum
• A refined sub-grid model for black hole accretion and AGN feedback in large cosmological simulations
• The Impact of Galaxy Formation on the Sunyaev-Zeldovich Effect of Galaxy Clusters
• Impact of baryon physics on dark matter structures: a detailed simulation study of halo density profiles
• Detection of the Splashback Radius and Halo Assembly bias of Massive Galaxy Clusters
• Hydrodynamic Simulation of Non-thermal Pressure Profiles of Galaxy Clusters
• Search for cosmic-ray induced gamma-ray emission in Galaxy Clusters
• Evidence for AGN Feedback in Galaxy Clusters and Groups
• Self-Calibration of Cluster Dark Energy Studies: Counts in Cells
• The MUSIC of Galaxy Clusters I: Baryon properties and Scaling Relations of the thermal Sunyaev-Zel'dovich Effect
• A Simple and Accurate Model for Intra-Cluster Gas
• The Atacama Cosmology Telescope: Dynamical Masses and Scaling Relations for a Sample of Massive Sunyaev-Zel'dovich Effect Selected Galaxy Clusters
• The Halo Boundary of Galaxy Clusters in the SDSS
• The effect of AGN feedback on the halo mass function
• Pressure of the hot gas in simulations of galaxy clusters
• The Three Hundred Project: Backsplash galaxies in simulations of clusters
• Sunyaev-Zel'dovich Effect and X-ray Scaling Relations from Weak-Lensing Mass Calibration of 32 SPT Selected Galaxy Clusters
• Assembly Bias and Splashback in Galaxy Clusters
• Simulating cosmic rays in clusters of galaxies - III. Non-thermal scaling relations and comparison to observations
• The Three Hundred Project: Dynamical state of galaxy clusters and morphology from multi-wavelength synthetic maps
• \textsc{The Three Hundred} project: The \textsc{Gizmo-Simba} run
• Measurement of the Splashback Feature around SZ-selected Galaxy Clusters with DES, SPT and ACT
• A Measurement of the Galaxy Group-Thermal Sunyaev-Zel'dovich Effect Cross-Correlation Function
• Accretion Shocks in Clusters of Galaxies and their SZ Signature from Cosmological Simulations
• The turbulent pressure support in galaxy clusters revisited
• The Two-Halo Term in Stacked Thermal Sunyaev-Zel'dovich Measurements: Implications for Self-Similarity
• The Three Hundred Project: The evolution of galaxy cluster density profiles
• The Three Hundred Project: Ram pressure and gas content of haloes and subhaloes in the phase-space plane
• Encounters of Merger and Accretion Shocks in Galaxy Clusters and their Effects on Intracluster Medium
• Likelihood Methods for Cluster Dark Energy Surveys
• The Three Hundred Project: quest of clusters of galaxies morphology and dynamical state through Zernike Polynomials
• Locations of Accretion Shocks around Galaxy Clusters and the ICM properties: insights from Self-Similar Spherical Collapse with arbitrary mass accretion rates
• Constraining the Mass-Richness Relationship of redMaPPer Clusters with Angular Clustering
• The Three Hundred project: shapes and radial alignment of satellite, infalling, and backsplash galaxies
• The Effects of Halo Assembly Bias on Self-Calibration in Galaxy Cluster Surveys
• The galaxy cluster outskirts probed by Chandra
• Shocks in the Stacked Sunyaev-Zel'dovich Profiles of Clusters I: Analysis with the Three Hundred Simulations
• The Three Hundred Project: the stellar and gas profiles
• Discovery of a new fundamental plane dictating galaxy cluster evolution from gravitational lensing
• What to expect from dynamical modelling of cluster haloes II. Investigating dynamical state indicators with Random Forest
• The Three Hundred: Cluster Dynamical States and Relaxation Time Scale
• A clustering-based self-calibration of the richness-to-mass relation of CAMIRA galaxy clusters out to $z\approx 1.1$ in the Hyper Suprime-Cam survey
• Scatter in Sunyaev--Zel'dovich effect scaling relations explained by inter-cluster variance in mass accretion histories
• The Concentration-Mass Relation of Massive, Dynamically Relaxed Galaxy Clusters: Agreement Between Observations and $\Lambda$CDM Simulations
• The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 $\le z\le$ 0.60 and $4\times 10^{14}$ M${}_{\odot }$ $\le {\text{M}}_{500}\le 30\times 10^{14}$ M${}_{\odot }$
• An exploration of the properties of cluster profiles for the thermal and kinetic Sunyaev-Zel'dovich effects

Cited by in corpus (1)

• Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Resolving the Hot and Ionized Universe through the Sunyaev-Zeldovich effect