Reading the Meter: Interpreting AGN Heating of Clusters

Greg Taylor, UNM

It is becoming well established that some form of feedback mechanism regulates the fuel supplied to the central dominant AGN in galaxy clusters. Details of the accretion and the energy transport are still to be understood and are important for the study of not just clusters, but galaxy evolution as well. By studying the radio emission of the central dominant AGN over a broad range of physical scales we can read the history of energy input to the cluster. I will describe some of the radio observations from parsec to mega-parsec scales.