Radio Galaxies in Cooling Cores: Insights from a Complete Sample

Abstract

We have observed a new, complete, cooling-core sample with the VLA, in order to understand how the massive black hole in the central galaxy interacts with the local cluster plasma. We find that every cooling core is currently being energized by an active radio jet, which has probably been destabilized by its interaction with the cooling core. We argue that current models of cooling-core radio galaxies need to be improved before they can be used to determine the rate at which the jet is heating the cooling core. We also argue that the extended radio haloes we see in many cooling-core clusters need extended, in situ re-energization, which cannot be supplied solely by the central galaxy.

To appear in proceeding of "Heating and Cooling in Galaxies and Clusters of Galaxies" (August 2006, MPE/Garching). 6 pages, needs svmult.cls file

References in corpus (9)

• A Systematic Study of Radio-Induced X-ray Cavities in Clusters, Groups, and Galaxies
• Chandra Observation of the Radio Source / X-ray Gas Interaction in the Cooling Flow Cluster Abell 2052
• Reflections of AGN Outbursts in the Gaseous Atmosphere of M87
• Deep inside the core of Abell 1795: the Chandra view
• The properties of the X-ray holes in the intracluster medium of the Perseus cluster
• MHD Simulations of Relic Radio Bubbles in Clusters
• The X-ray Properties of Nearby Abell Clusters from the ROSAT All-Sky Survey: The Sample and Correlations with Optical Properties
• Formation of Cool Cores in Galaxy Clusters via Hierarchical Mergers
• Hydra A at Low Radio Frequencies