Simulating X-ray Supercavities and Their Impact on Galaxy Clusters (2009)
Guo, Fulai, Mathews, William G.
Recent X-ray observations of hot gas in the galaxy cluster MS 0735.6+7421 reveal huge radio-bright, quasi-bipolar X-ray cavities having a total energy ~10^{62} ergs, the most energetic AGN outburst...
Could AGN Outbursts Transform Cool Core Clusters? (2009)
The origin of the bimodality in cluster core entropy is still unknown. At the same time, recent work has shown that thermal conduction in clusters is likely a time-variable phenomenon. We consider if...
A Global Stability Analysis of Clusters of Galaxies with Conduction and AGN Feedback Heating (2008)
Guo, Fulai, Oh, S. Peng, Ruszkowski, M.
We investigate a series of steady-state models of galaxy clusters, in which the hot intracluster gas is efficiently heated by active galactic nucleus (AGN) feedback and thermal conduction, and in...
Feedback Heating by Cosmic Rays in Clusters of Galaxies (2007)
Recent observations show that the cooling flows in the central regions of galaxy clusters are highly suppressed. Observed AGN-induced cavities/bubbles are a leading candidate for suppressing cooling,...