Abstract

AGN feedback in the Perseus cluster

Marie-Lou Gendron-Marsolais (Université de Montréal)

J. Hlavacek-Larrondo (University of Montreal, Canada),T.E. Clarke (Naval Research Laboratory, USA), R. V. Weeren (Harvard-Smithsonian Center for Astrophysics, USA), H. Intema (Leiden Observatory, Netherlands), A.C. Fabian (Institute of Astronomy, University of Cambridge, Cambridge), G.B. Taylor (University of New-Mexico, USA), M. Mezcua (University of Montreal, Canada), K. Blundell (University of Oxford, Oxford), S. Allen (Stanford University, USA), M. Latulippe (University of Montreal, Canada)

Deep Chandra images of the Perseus cluster of galaxies have revealed a succession of cavities created by the jets of the central supermassive black hole, pushing away the X-ray emitting gas and leaving bubbles filled with radio emission. Perseus is one of the rare examples showing buoyantly rising lobes from past radio outbursts, characterized by a steep spectral index and known as ghost cavities. All of these structures trace the complete history of mechanical AGN feedback over the past 500 Myrs. I will present results on new, ultra deep 230-470 MHz JVLA data. This low-frequency view of the Perseus cluster will probe the old radio-emitting electron population and will allow us to build the most detailed map of AGN feedback in a cluster thus far.

Mode of presentation: poster