Probing the Evolution of Gas Mass Fraction with Sunyaev-Zel'dovich Effect

Abstract

Study of the primary anisotropies of the Cosmic Microwave Background (CMB) can be used to determine the cosmological parameters to a very high precision. The power spectrum of the secondary CMB anisotropies due to the thermal Sunyaev-Zel'dovich Effect (SZE) by clusters of galaxies, can then be studied, to constrain more cluster specific properties (like gas mass). We show the SZE power spectrum from clusters to be a sensitive probe of any possible evolution (or constancy) of the gas mass fraction. The position of the peak of the SZE power spectrum is a strong discriminatory signature of different gas mass fraction evolution models. For example, for a flat universe, there can be a difference in the $l$ values (of the peak) of {\it as much as 3000} between a constant gas mass fraction model and an evolutionary one. Moreover, observational determination of power spectrum, from blank sky surveys, is devoid of any selection effects that can possibly affect targeted X-ray or radio studies of gas mass fractions in galaxy clusters.

arXiv comment4 pages plus 2 figures, uses emulateapj

References in corpus (20)

• Large scale bias and the peak background split
• The Sunyaev-Zel'dovich Effect
• Properties of the Intracluster Medium in an Ensemble of Nearby Galaxy Clusters
• Cosmic Background Anisotropies in CDM Cosmology
• The Four-Year COBE Normalization and Large-Scale Structure
• A ROSAT survey of Hickson's compact galaxy groups
• The impact of cooling flows on the Tx-Lbol relation for the most luminous clusters
• ROSAT PSPC observations of 36 high-luminosity clusters of galaxies: constraints on the gas fraction
• Sunyaev - Zel'dovich fluctuations from spatial correlations between clusters of galaxies
• Galaxy Cluster Gas Mass Fractions from Sunyaev-Zel'dovich Effect Measurements: Constraints on Omega_M
• A New Method to Estimate Cosmological Parameters Using Baryon Fraction of Clusters of Galaxies
• The Power Spectrum of the Sunyaev-Zel'dovich Effect
• Hydrodynamical simulations of the Sunyaev--Zel'dovich effect
• Large-Scale Sunyaev-Zel'dovich Effect: Measuring Statistical Properties with Multifrequency Maps
• Contributions to the Power Spectrum of Cosmic Microwave Background from Fluctuations Caused by Clusters of Galaxies
• Accurate determination of the Lagrangian bias for the dark matter halos
• Temperature Anisotropies and Distortions Induced by Hot Intracluster Gas on the Cosmic Microwave Background
• Reconstructing the radial profiles of gas density and temperature in clusters of galaxies from high-resolution X-ray and radio observations
• New Light on the Baryon Fraction in Galaxy Clusters
• Constraining q_0 with Cluster Gas Mass Fractions: A Feasibility Study

Cited by in corpus (14)

• Secondary anisotropies of the CMB
• The case for non-gaussianity on cluster scales
• Point sources in the context of future SZ surveys
• Cluster abundances and S-Z power spectra: effects of non-Gaussianity and early dark energy
• The intergalactic medium temperature and Compton y parameter
• The probability distribution function of the SZ power spectrum: an analytical approach
• The hybrid SZ power spectrum: Combining cluster counts and SZ fluctuations to probe gas physics
• CMB distortion from circumgalactic gas
• Simultaneous determination of ${\Omega }_{M0}$ and $H_0$ from joint Sunyaev-Zeldovich effect and X-ray observations with median statistics
• On the Detectability of the SZ Effect of Massive Young Galaxies
• The effect of cluster magnetic field on the Sunyaev Zeldovich power spectrum
• CMB Comptonization in Clusters: Spectral and Angular Power from Evolving Polytropic Gas
• AGN feedback with the Square Kilometer Array (SKA) and implications for cluster physics and cosmology
• The non-thermal secondary CMB anisotropies from a cosmic distribution of radio galaxy lobes