2008/11/30 by Chris J. Short, C. J. Short, P. Thomas +1
Physics and Astronomy · #Active galactic nucleus #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Galaxy formation and evolution #Intergalactic medium #Intergalactic travel #Intracluster medium #Physics #Population #Redshift #astro-ph
paper · pdf · doi:10.1088/0004-637x/704/2/915
published as Astrophys.J.704:915-929,2009 · 25 pages and 10 colour figures. Accepted by ApJ
arxiv created 2009/09/16 · openalex publication_date 2009/09/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present hydrodynamical N -body simulations of clusters of galaxies with feedback taken from semianalytic models of galaxy formation. The advantage of this technique is that the source of feedback in our simulations is a population of galaxies that closely resembles that found in the real universe. We demonstrate that, to achieve the high entropy levels found in clusters, active galactic nuclei must inject a large fraction of their energy into the intergalactic/intracluster media throughout the growth period of the central black hole. These simulations reinforce the argument of Bower et al., who arrived at the same conclusion on the basis of purely semianalytic reasoning.