A Chandra archival study of the temperature and metal abundance profiles in hot galaxy clusters at 0.1 ≲ z ≲ 0.3

We present an analysis of the temperature and metallicity profiles of 12 galaxy clusters in the redshift range 0.1-0.3 selected from the Chandra archive with at least similar to 20,000 net ACIS counts and kT > 6 keV. We divide the sample between seven cooling-core ( CC) and five non-cooling-core (NCC) clusters according to their central cooling time. We find that single power laws can properly describe both the temperature and metallicity profiles at radii larger than 0.1r(180) in both CC and NCC systems, with NCC objects showing steeper profiles outward. A significant deviation is present only in the inner 0.1r(180). We perform a comparison of our sample with the De Grandi & Molendi BeppoSAX sample of local CC and NCC clusters, finding a complete agreement in the CC cluster profile and a marginally higher value (at similar to 1 sigma) in the inner regions of the NCC clusters. The slope of the power law describing kT(r) within 0.1r(180) correlates strongly with the ratio between the cooling time and the age of the universe at the cluster redshift, with a slope > 0 and T-c/T-age less than or similar to 0.6 in CC systems.