The Physics of Cooling Flow Clusters with Central Radio Sources

Central galaxies in rich clusters are the sites of cluster cooling flows, withlarge masses of gas cooling through part of the Xray band. Many of thesegalaxies host powerful radio sources. These sources can displace and compressthe Xray gas leading to enhanced cooling and star formation. We proposeobservations of three bright cooling flows with radio sources that will exploitthe large collecting area and spectral resolution of XMMNewton. We willconstrain the source of additional pressure in radio holes in the Xrayemission needed to support overlying shells of Xray gas. We will address theproblem of the lack of kT < 12 keV gas in cooling flows by searching forabundance inhomogeneities, heating from the radio source, and excess absorption. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]