Cosmology and Astrophysics with the Diffuse eRASS1 X-ray Angular Power Spectrum

Abstract

The recent tension in the value of the cosmological parameter $S_8\equiv {\sigma }_8({\Omega }_M/0.3{)}^{1/2}$, which represents the amplitude of the matter density fluctuations of the universe, has not been resolved. In this work, we present constraints on $S_8$ with the X-ray angular power spectra of clusters and groups measured with the half-sky map from the eROSITA All Sky Survey data release 1 (eRASS1). Thanks to the extensive sky coverage of eRASS1, it achieves unprecedented precision compared to previous power spectrum measurements. Using a well-calibrated, physical halo gas model that includes astrophysics of feedback and non-thermal pressure support, we obtain $S_8=0.80_{-0.01}^{+0.02}$ with 1$\sigma$ uncertainty that is competitive against other cosmological probes. Our derived $S_8$ value is smaller than the primary CMB measurements from {\em Planck}, but still consistent to within $1\sigma$. We also obtain constraints on the astrophysics of feedback, non-thermal pressure, equation of state in cluster cores, and outer boundaries of gas in clusters and groups. We discuss how additional X-ray observations, and cosmological surveys in microwave and optical, will further improve the cosmological constraints with the angular power spectrum. Our work demonstrates that the angular power spectrum of clusters and groups is a promising probe of both cosmology and astrophysics.

13 pages, 5 figures, ApJ accepted. Updated to match the accepted version

References in corpus (68)

• emcee: The MCMC Hammer
• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• Toward a halo mass function for precision cosmology: the limits of universality
• HI4PI: A full-sky HI survey based on EBHIS and GASS
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Cosmological Parameters from Observations of Galaxy Clusters
• Chandra Cluster Cosmology Project III: Cosmological Parameter Constraints
• KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
• The eROSITA X-ray telescope on SRG
• KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints
• Planck 2018 results. VIII. Gravitational lensing
• Updated Atomic Data and Calculations for X-ray Spectroscopy
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Data Calibration
• A unified pseudo-$C_{\ell }$ framework
• The SRG/eROSITA all-sky survey: First X-ray catalogues and data release of the western Galactic hemisphere
• 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 eROSITA Final Equatorial Depth Survey (eFEDS): The X-ray catalog
• The Observed Growth of Massive Galaxy Clusters I: Statistical Methods and Cosmological Constraints
• The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters
• The splashback radius as a physical halo boundary and the growth of halo mass
• Power Spectrum Super-Sample Covariance
• The Atacama Cosmology Telescope: A Measurement of the DR6 CMB Lensing Power Spectrum and its Implications for Structure Growth
• The Uchuu Simulations: Data Release 1 and Dark Matter Halo Concentrations
• Cosmological Constraints from Sunyaev-Zel'dovich-Selected Clusters with X-ray Observations in the First 178 Square Degrees of the South Pole Telescope Survey
• Halo mass function: Baryon impact, fitting formulae and implications for cluster cosmology
• Hyper Suprime-Cam Year 3 Results: Cosmology from Cosmic Shear Power Spectra
• Universal thermodynamic properties of the intracluster medium over two decades in radius in the X-COP sample
• Impact of Cluster Physics on the Sunyaev-Zel'dovich Power Spectrum
• A non-linear solution to the $S_8$ tension?
• Hydrodynamic Simulation of Non-thermal Pressure Profiles of Galaxy Clusters
• Gas Clumping in the Outskirts of Lambda-CDM Clusters
• The Weak Lensing Signal and the Clustering of BOSS Galaxies II: Astrophysical and Cosmological Constraints
• Weighing Galaxy Clusters with Gas. II. On the Origin of Hydrostatic Mass Bias in LambdaCDM Galaxy Clusters
• The SRG/eROSITA all-sky survey: Cosmology constraints from cluster abundances in the western Galactic hemisphere
• Cosmological Constraints from DES Y1 Cluster Abundances and SPT Multi-wavelength data
• Dark Energy from the Thermal Sunyaev Zeldovich Power Spectrum
• Gas clumping in galaxy clusters
• Cross-correlating cosmic IR and X-ray background fluctuations: evidence of significant black hole populations among the CIB sources
• Hyper Suprime-Cam Year 3 Results: Cosmology from Galaxy Clustering and Weak Lensing with HSC and SDSS using the Minimal Bias Model
• Cosmology from the Thermal Sunyaev-Zel'dovich Power Spectrum: Primordial non-Gaussianity and Massive Neutrinos
• Cosmological Constraints from Galaxy Clusters and Groups in the eROSITA Final Equatorial Depth Survey
• Disconnected pseudo-$C_{\ell }$ covariances for projected large-scale structure data
• Cosmic shear power spectra in practice
• The eROSITA Final Equatorial-Depth Survey (eFEDS): Galaxy Clusters and Groups in Disguise
• The nature of the unresolved extragalactic soft CXB
• Detecting clusters of galaxies and active galactic nuclei in an eROSITA all-sky survey digital twin
• KiDS-1000: Cosmology with improved cosmic shear measurements
• Constraints on the optical depth of galaxy groups and clusters
• The Contribution of z<6 Sources to the Spatial Coherence in the Unresolved Cosmic near-Infrared and X-ray Backgrounds
• The XXL survey: XLVI. Forward cosmological analysis of the C1 cluster sample
• Shock and Splash: Gas and Dark Matter Halo Boundaries around LambdaCDM Galaxy Clusters
• Shocks in the Stacked Sunyaev-Zel'dovich Profiles of Clusters II: Measurements from SPT-SZ + Planck Compton-y Map
• Investigating Cluster Astrophysics and Cosmology with Cross-Correlation of the Thermal Sunyaev-Zel'dovich Effect and Weak Lensing
• The cosmic web of X-ray active galactic nuclei seen through the eROSITA Final Equatorial Depth Survey (eFEDS)
• Baryon Pasting Algorithm: Halo-based and Particle-based Pasting Methods
• Cosmological constraints from the observed angular cross-power spectrum between Sunyaev-Zel'dovich and X-ray surveys
• Probing Cosmology and Cluster Astrophysics with Multi-Wavelength Surveys I. Correlation Statistics
• Gas clumping in the outskirts of the Virgo cluster
• Cosmological constraints from the cluster contribution to the power spectrum of the soft X-ray background. New evidence for a low sigma_8
• Super-sample covariance of the thermal Sunyaev-Zel'dovich effect
• Can AGN and galaxy clusters explain the surface brightness fluctuations of the cosmic X-ray background?
• Studying the ICM in clusters of galaxies via surface brightness fluctuations of the cosmic X-ray background
• Constraining the X-ray AGN halo occupation distribution: implications for eROSITA
• The X-ray Angular Power Spectrum of Extended Sources in the eROSITA Final Equatorial Depth Survey
• Spatial Power Spectral Analysis of the Suzaku X-ray Background

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