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Joint analysis of X-ray and Sunyaev Zel'dovich observations of galaxy clusters using an analytic model of the intra-cluster medium

We perform a joint analysis of X-ray and Sunyaev Zel'dovich (SZ) effect data using an analytic model that describes the gas properties of galaxy clusters. The joint analysis allows the measurement of the cluster gas mass fraction profile and Hubble constant independent of cosmological parameters. Weak cosmological priors are used to calculate the overdensity radius within which the gas mass fractions are reported. Such an analysis can provide direct constraints on the evolution of the cluster gas mass fraction with redshift. We validate the model and the joint analysis on high signal-to-noise data from the Chandra X-ray Observatory and the Sunyaev-Zel'dovich Array for two clusters, Abell 2631 and Abell 2204.

preprint2012arXivOpen access
Nicole HaslerEsra BulbulMassimiliano BonamenteJohn E. CarlstromThomas L. CulverhouseMegan GrallaChristopher GreerDavid HawkinsRyan HennessyMarshall JoyJeffery KolodziejczakJames W. LambDavid LandryErik M. LeitchAdam MantzDaniel P. MarroneAmber MillerTony MroczkowskiStephen MuchovejThomas PlaggeClem PrykeDavid Woody
astro-ph.CO
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Open access22 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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Nicole HaslerEsra BulbulMassimiliano BonamenteJohn E. CarlstromThomas L. CulverhouseMegan GrallaChristopher GreerDavid HawkinsRyan HennessyMarshall JoyJeffery KolodziejczakJames W. LambDavid LandryErik M. LeitchAdam MantzDaniel P. MarroneAmber MillerTony MroczkowskiStephen MuchovejThomas PlaggeClem PrykeDavid Woody

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