477 citations · 2.7k across the 29 of their papers we have counts for
15 papers · 1 filter
An Energetic AGN Outburst Powered by a Rapidly Spinning Supermassive Black Hole or an Accreting Ultramassive Black Hole
B. R. McNamara, F. Kazemzadeh, D. A. Rafferty +4
Powering the 10^62 erg nuclear outburst in the MS0735.6+7421 cluster central galaxy by accretion implies that its supermassive black hole (SMBH) grew by ~6x10^8 solar masses over t…
Cosmological Effects of Powerful AGN Outbursts in Galaxy Clusters: Insights from an XMM-Newton Observation of MS0735+7421
Myriam Gitti, Brian R. McNamara, Paul E. J. Nulsen +1
We report on the results of an analysis of XMM-Newton observations of MS0735+7421, the galaxy cluster which hosts the most energetic AGN outburst currently known. The previous Chan…
Radio Properties of Cavities in the ICM: Imprints of AGN Activity
L. Birzan, B. R. McNamara, C. L. Carilli +2
We present new, high resolution radio images of sources associated with cD galaxies and X-ray cavity systems located in cluster cores. The cavity properties derived from archival C…
The Growth of Black Holes and Bulges at the Cores of Cooling Flows
D. A. Rafferty, B. R. McNamara, P. E. J. Nulsen +1
Central cluster galaxies (cDs) in cooling flows are growing rapidly through gas accretion and star formation. At the same time, AGN outbursts fueled by accretion onto supermassive…
X-ray Supercavities in the Hydra A Cluster and the Outburst History of the Central Galaxy's Active Nucleus
M. W. Wise, B. R. McNamara, P. E. J. Nulsen +2
A 227 ksec Chandra Observatory X-ray image of the hot plasma in the Hydra A cluster has revealed an extensive cavity system. The system was created by a continuous outflow or a ser…
AGN Heating through Cavities and Shocks
P. E. J. Nulsen, C. Jones, W. R. Forman +5
Three comments are made on AGN heating of cooling flows. A simple physical argument is used to show that the enthalpy of a buoyant radio lobe is converted to heat in its wake. Thus…