2012ApJ...748..113H

Query : 2012ApJ...748..113H

2012ApJ...748..113H - Astrophys. J., 748, 113 (2012/April-1)

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

HASLER N., BULBUL E., BONAMENTE M., CARLSTROM J.E., CULVERHOUSE T.L., GRALLA M., GREER C., HAWKINS D., HENNESSY R., JOY M., KOLODZIEJCZAK J., LAMB J.W., LANDRY D., LEITCH E.M., MANTZ A., MARRONE D.P., MILLER A., MROCZKOWSKI T., MUCHOVEJ S., PLAGGE T., PRYKE C. and WOODY D.

Abstract (from CDS):

We perform a joint analysis of X-ray and Sunyaev-Zel'dovich 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, A2631 and A2204.

Abstract Copyright: ∼

Journal keyword(s): X-rays: galaxies: clusters - X-rays: individual (A2204, A2631)

Simbad objects: 2

Full paper

View the references in ADS

Number of rows : 2

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	ACO 2204	ClG	16 32 47.7	+05 34 18						~	457	0
2	ACO 2631	ClG	23 37 40.7	+00 16 35						~	183	0

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