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A Very Deep Chandra Observation of Abell 2052: Bubbles, Shocks, and Sloshing

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arxiv 1105.4572 v2 pith:IANOC3MP submitted 2011-05-23 astro-ph.CO astro-ph.HE

E. L. Blanton (BU) , S. W. Randall (CfA) , T. E. Clarke (NRL) , C. L. Sarazin (UVa) , B. R. McNamara (U. Waterloo) , E. M. Douglass (BU) , M. McDonald (U. Maryland) This is my paper · ORCID
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We present first results from a very deep (~650 ksec) Chandra X-ray observation of Abell 2052, as well as archival VLA radio observations. The data reveal detailed structure in the inner parts of the cluster, including bubbles evacuated by the AGN's radio lobes, compressed bubble rims, filaments, and loops. Two concentric shocks are seen, and a temperature rise is measured for the innermost one. On larger scales, we report the first detection of an excess surface brightness spiral feature. The spiral has cooler temperatures, lower entropies, and higher abundances than its surroundings, and is likely the result of sloshing gas initiated by a previous cluster-cluster or sub-cluster merger. Initial evidence for previously unseen bubbles at larger radii related to earlier outbursts from the AGN is presented.

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Cited by 3 Pith papers

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