Cosmological Constraints from Gas Mass Fractions of Massive, Relaxed Galaxy Clusters

Abstract

We present updated cosmological constraints from measurements of the gas mass fractions ($f_{gas}$) of massive, dynamically relaxed galaxy clusters. Our new data set has greater leverage on models of dark energy, thanks to the addition of the Perseus Cluster at low redshifts, two new clusters at redshifts $z>0.97$, and significantly longer observations of four clusters at $0.6<z<0.9$. Our low-redshift ($z<0.16$) $f_{gas}$ data, combined with the cosmic baryon fraction measured from the cosmic microwave background (CMB), imply a Hubble constant of $h=0.722\pm 0.067$. Combining the full $f_{gas}$ data set with priors on the cosmic baryon density and the Hubble constant, we constrain the dark energy density to be ${\Omega }_{\Lambda }=0.865\pm 0.119$ in non-flat $\Lambda$CDM (cosmological constant) models, and its equation of state to be $w=-1.13_{-0.20}^{+0.17}$ in flat, constant-w models, respectively 41 and 29 per cent tighter than our previous work, and comparable to the best constraints available from other probes. Combining $f_{gas}$, CMB, supernova, and baryon acoustic oscillation data, we also constrain models with global curvature and evolving dark energy. For the massive, relaxed clusters employed here, we find the scaling of $f_{gas}$ with mass to be consistent with a constant, with an intrinsic scatter that corresponds to just 3 per cent in distance.

To be published in MNRAS. See https://github.com/abmantz/fgas-cosmo for code and https://github.com/abmantz/fgas-2021-paper for data presented in figures/tables

References in corpus (13)

• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• Galaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey
• Testing X-ray Measurements of Galaxy Clusters with Cosmological Simulations
• Weighing the Giants IV: Cosmology and Neutrino Mass
• Baryons at the Edge of the X-ray Brightest Galaxy Cluster
• Cosmology and Astrophysics from Relaxed Galaxy Clusters II: Cosmological Constraints
• The baryon fraction of LambdaCDM haloes
• The redshift evolution of massive galaxy clusters in the MACSIS simulations
• Cosmology and Astrophysics from Relaxed Galaxy Clusters I: Sample Selection
• Pressure of the hot gas in simulations of galaxy clusters
• Suppressed effective viscosity in the bulk intergalactic plasma
• Cosmology and Astrophysics from Relaxed Galaxy Clusters V: Consistency with Cold Dark Matter Structure Formation
• Measuring $H_0$ using X-ray and SZ effect observations of dynamically relaxed galaxy clusters

Cited by in corpus (39)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• On the evolution of the Hubble constant with the SNe Ia Pantheon Sample and Baryon Acoustic Oscillations: a feasibility study for GRB-cosmology in 2030
• A Consistent View of Interacting Dark Energy from Multiple CMB Probes
• Multidimensionality of the Hubble tension: the roles of ${\Omega }_m$ and ${\omega }_c$
• The gravitational field of X-COP galaxy clusters
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Mapping "out-of-the-box" the properties of the baryons in massive halos
• Assessing the Importance of Noise from Thermal Sunyaev-Zel{'}dovich Signals for CMB Cluster Surveys and Cluster Cosmology
• Constraining the mass and redshift evolution of the hydrostatic mass bias using the gas mass fraction in galaxy clusters
• Scientific Objectives of the Hot Universe Baryon Surveyor (HUBS) Mission
• The Concentration-Mass Relation of Massive, Dynamically Relaxed Galaxy Clusters: Agreement Between Observations and $\Lambda$CDM Simulations
• Simulation view of galaxy clusters with low X-ray surface brightness
• Brightest Cluster Galaxies Trace Weak Lensing Mass Bias and Halo Triaxiality in The Three Hundred Project
• Observational constraints on varying fundamental constants in a minimal CPC model
• Unveiling the Hubble Constant through Galaxy Cluster Gas Mass Fractions
• Dark Matter in Fractional Gravity I: Astrophysical Tests on Galactic Scales
• Soft X-ray emission from warm gas in IllustrisTNG circum-cluster environments
• Rhapsody-C simulations -- Anisotropic thermal conduction, black hole physics, and the robustness of massive galaxy cluster scaling relations
• $i(cm)z$, a semi-analytic model for the thermodynamic properties in galaxy clusters: calibrations with mass and redshift, and implication for the hydrostatic bias
• Chandra measurements of gas homogeneity and turbulence at intermediate radii in the Perseus Cluster
• Discord in Concordance Cosmology and Anomalously Massive Early Galaxies
• Shadows of black holes at cosmological distances in the co-varying physical couplings framework
• Optical Photometric Indicators of Galaxy Cluster Relaxation
• SPT-CL J2215-3537: A Massive Starburst at the Center of the Most Distant Relaxed Galaxy Cluster
• A test of the evolution of gas depletion factor in galaxy clusters using strong gravitational lensing systems
• Non-parametric reconstruction of the fine structure constant with galaxy clusters
• Forecasting cosmological parameter constraints using multiple sparsity measurements as tracers of the mass profiles of dark matter haloes
• The X-ray Angular Power Spectrum of Extended Sources in the eROSITA Final Equatorial Depth Survey
• The Three Hundred Project: Modeling Baryon and Hot-Gas Fraction Evolution in Simulated Clusters
• Non-Parametric Analysis for the Dark Matter Density Evolution
• Deep Chandra Observations of the z = 1.16 Relaxed, Cool-core Galaxy Cluster SPT-CL J2215-3537
• Ultra-compact Objects of Non-minimally Coupled Dark Matter
• Comparison of $\Lambda$CDM and $R_h=ct$ with updated galaxy cluster $f_{gas}$ measurements using Bayesian inference
• The impact of baryons on the sparsity of simulated galaxy clusters from The Three Hundred Project
• A Relativistic Tensorial Model for Fractional Interaction between Dark Matter and Gravity
• X-ray emission in IllustrisTNG circum-cluster environments. II -- Possible origins of the soft X-ray excess emission
• Investigating a Possible Variation of the Gravitational Constant Through Gas Mass Fraction Measurements and Type Ia Supernovae Observations
• Multiwavelength Characterization of a Dynamically Relaxed Cool Core Galaxy Cluster at $z=1.5$
• Ruminations Upon the Modeling of X-ray Foregrounds, Backgrounds and Faint Sources