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Date and Time of the Query: 2019-04-20 T00:29:35 PDT
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For refcode 2007ApJ...666..835B:
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Copyright by American Astronomical Society. Reproduced by permission
2007ApJ...666..835B A Chandra Archival Study of the Temperature and Metal Abundance Profiles in Hot Galaxy Clusters at 0.1 <~ z <~ 0.3 A. Baldi, S. Ettori, P. Mazzotta, P. Tozzi, and S. Borgani Abstract. 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 ~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 ~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 {tau}_c_/{tau}_age_<~0.6 in CC systems. Key words: Galaxies: Clusters: General, Galaxies: Intergalactic Medium, X-Rays: Galaxies: Clusters
Retrieve 12 NED objects in this reference.
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