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2006MNRAS.365..509M - Mon. Not. R. Astron. Soc., 365, 509-529 (2006/January-2)
The evolution of the cluster X-ray scaling relations in the Wide Angle ROSAT Pointed Survey sample at 0.6 < z < 1.0.
MAUGHAN B.J., JONES L.R., EBELING H. and SCHARF C.
Abstract (from CDS):
The slope of the L-T relation at high redshift (B= 3.32±0.37) is consistent with the local relation, and significantly steeper than the self-similar prediction of B= 2. This suggests that the same non-gravitational processes are responsible for steepening the local and high-z relations, possibly occurring universally at z≳ 1 or in the early stages of the cluster formation, prior to their observation.
The properties of the intracluster medium at high redshift are found to be similar to those in the local Universe. The mean surface-brightness profile slope for the sample is β= 0.66±0.05, the mean gas mass fractions within R_2500(z)_and R_200(z)_are 0.069±0.012 and 0.11±0.02, respectively, and the mean metallicity of the sample is 0.28±0.11 Z☉.
Abstract Copyright: 2005 The Authors. Journal compilation © 2005 RAS
Journal keyword(s): galaxies: clusters: general - galaxies: high-redshift - intergalactic medium - cosmology: observations - X-rays: galaxies
Simbad objects: 12
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