2006/08/01 by A. Merloni, Sebastian Heinz, S. Heinz
Physics and Astronomy · #Accretion (finance) #Astrophysical Phenomena and Observations #Astrophysics #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy formation and evolution #Gamma-ray bursts and supernovae #Kinetic energy #Luminosity #Luminosity function #Physics #Radio galaxy #Redshift #Spectral density #astro-ph
paper · pdf · doi:10.1017/s174392130700470x
4 pages, 2 color figures. Proc. of the IAU symposium No. 238 "Black holes: from stars to galaxies - across the range of masses", Prague, Aug. 2006. V. Karas & G. Matt (eds.)
openalex publication_date 2006/08/01 · arxiv created 2006/11/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract We present a first attempt to derive the cosmological evolution of the kinetic luminosity function of AGN based on the joint evolution of the flat spectrum radio and hard X-ray selected AGN luminosity functions. An empirical correlation between jet power and radio core luminosity is found, which is consistent with the theoretical assumption that, below a certain Eddington ratio, SMBH accrete in a radiatively inefficient way, while most of the energy output is in the form of kinetic energy. We show how the redshift evolution of the kinetic power density from such a low-ṁ mode of accretion makes it a good candidate to explain the so-called “radio mode” of AGN feedback as outlined in many galaxy formation schemes.