B.R. McNamara, P.E.J. Nulsen, D.A. Rafferty, M. Wise, C. Carilli, C.L. Sarazin, E.L. Blanton. "The heating of gas in a galaxy cluster by X-ray cavities and large-scale shock fronts". 2005, Nature, 433, 45
L. Birzan, D. A. Rafferty, B. R. McNamara, M. W. Wise, & P. E. J. Nulsen. "A Systematic Study of Radio-Induced X-ray Cavities in Clusters, Groups, and Galaxies". 2004, ApJ, 607, 800
B.R. McNamara, M. Wise, P.E.J. Nulsen, L.P. David, C.L. Sarazin, M. Bautz, M. Markevitch, A. Vikhlinin, W.R. Forman, C. Jones, & D.E. Harris. "Chandra X-ray Observations of the Hydra A Cluster: An Interaction between the Radio Source and the Cluster's X-ray-emitting Gas". 2000, ApJ, 534, L135
B.R. McNamara, M.W. Wise, P.E.J. Nulsen, C.L. Sarazin, L.P. David, M. Donahue, C.P. O'Dea, S. Baum, M. Voit, R.W. O'Connell, & A. Koekemoer. "Discovery of Ghost Cavities in the X-ray Atmosphere of Abell 2597'. 2001, ApJ, 562, L149
C. R. Mullis, B.R. McNamara, H. Quintana, A. Vikhlinin, J. P. Henry, I. M. Gioia, A. Hornstrup, W. Forman, C. Jones. "The 160 Square Degree ROSAT Survey: The Revised Catalog of 201 Clusters with Spectroscopic Redshifts". 2003, ApJ, 594, 154
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Giant black holes weighing upwards of one billion times the mass of the Sun are thought to lurk at the centers of all massive galaxies. Energy released by spin breaking and infalling matter onto such supermassive black holes may be regulating the growth of galaxies and clusters of galaxies. 
