The Seeding of Cosmic Ray Electrons by Cluster Radio Galaxies: A Review

Abstract

Radio galaxies in clusters of galaxies are a prominent reservoir of magnetic fields and of non-thermal particles, which become mixed with the intracluster medium. We review the observational and theoretical knowledge of the role of these crucial ingredients for the formation of diffuse radio emission in clusters (radio halos, relics, mini halos) and outline the open questions in this field.

Keywords

• AGN feedback
• radio jets
• galaxy evolution
• clusters of galaxies