Cosmography with the Sunyaev-Zeldovich effect and X-ray data

Abstract

Cosmography provides a direct method to map the expansion history of the Universe in a model-independent way. Recently, different kinds of observations have been used in cosmographic analyses, such as SNe Ia and gamma ray bursts measurements, weak and strong lensing, cosmic microwave background anisotropies, etc. In this work we examine the prospects for constraining cosmographic parameters from current and future measurements of galaxy clusters distances based on their Sunyaev-Zeldovich effect (SZE) and X-ray observations. By assuming the current observational error distribution, we perform Monte Carlo simulations based on a well-behaved parameterization for the deceleration parameter to generate samples with different characteristics and study the improvement on the determination of the cosmographic parameters from upcoming data. The influence of galaxy clusters (GC) morphologies on the $H_0-q_0$ plane is also investigated.

6 pages, 8 figures, Accepted to JCAP

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• Measuring the Three-Dimensional Structure of Galaxy Clusters. II. Are clusters of galaxies oblate or prolate?
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Cited by in corpus (10)

• Cosmographic analysis of the equation of state of the universe through Padé approximations
• Is cosmography a useful tool for testing cosmology?
• Model independent constraints on transition redshift
• Astronomical Distance Determination in the Space Age. Secondary distance indicators
• BAO cosmography
• Unified Dark Fluid and Cosmic Transit Models in Brans-Dicke Theory
• On tidal forces in f(R) theories of gravity
• On a possible cosmological evolution of galaxy cluster $Y_{\mathrm{X}}-Y_{\mathrm{SZE}}$ scaling relation
• Probing the Cosmic Distance Duality Relation via Non-Parametric Reconstruction for High Redshifts
• Investigating the compatibility of exact solutions in Weyl-type $f(Q,T)$ gravity with observational data