1 K.. Heng, D.. Lazzati, R.. Perna, P.. Garnavich, A.. Noriega-Crespo, D.. Bersier, T.. Matheson, and M.. Pahre, The Astrophysical Journal 681, (2008).
1 W.. Forman, C.. Jones, E.. Churazov, M.. Markevitch, P.. Nulsen, A.. Vikhlinin, M.C. Begelman, H.. Bohringer, J.. Eilek, S.. Heinz, R.P. Kraft, F.N. Owen, and M.. Pahre, The Astrophysical Journal 665, (2007).