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Title: COMBINING SEMIANALYTIC MODELS WITH SIMULATIONS OF GALAXY CLUSTERS: THE NEED FOR HEATING FROM ACTIVE GALACTIC NUCLEI

Abstract

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.

Authors:
Publication Date:
OSTI Identifier:
21367397
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 704; Journal Issue: 2; Other Information: DOI: 10.1088/0004-637X/704/2/915; Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BLACK HOLES; ENTROPY; GALAXY CLUSTERS; GALAXY NUCLEI; HYDRODYNAMICS; SIMULATION; UNIVERSE; X-RAY GALAXIES; COSMIC RAY SOURCES; COSMIC X-RAY SOURCES; FLUID MECHANICS; GALAXIES; MECHANICS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES

Citation Formats

Short, C J, and Thomas, P. A., E-mail: C.Short@sussex.ac.u. COMBINING SEMIANALYTIC MODELS WITH SIMULATIONS OF GALAXY CLUSTERS: THE NEED FOR HEATING FROM ACTIVE GALACTIC NUCLEI. United States: N. p., 2009. Web. doi:10.1088/0004-637X/704/2/915.
Short, C J, & Thomas, P. A., E-mail: C.Short@sussex.ac.u. COMBINING SEMIANALYTIC MODELS WITH SIMULATIONS OF GALAXY CLUSTERS: THE NEED FOR HEATING FROM ACTIVE GALACTIC NUCLEI. United States. https://doi.org/10.1088/0004-637X/704/2/915
Short, C J, and Thomas, P. A., E-mail: C.Short@sussex.ac.u. 2009. "COMBINING SEMIANALYTIC MODELS WITH SIMULATIONS OF GALAXY CLUSTERS: THE NEED FOR HEATING FROM ACTIVE GALACTIC NUCLEI". United States. https://doi.org/10.1088/0004-637X/704/2/915.
@article{osti_21367397,
title = {COMBINING SEMIANALYTIC MODELS WITH SIMULATIONS OF GALAXY CLUSTERS: THE NEED FOR HEATING FROM ACTIVE GALACTIC NUCLEI},
author = {Short, C J and Thomas, P. A., E-mail: C.Short@sussex.ac.u},
abstractNote = {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.},
doi = {10.1088/0004-637X/704/2/915},
url = {https://www.osti.gov/biblio/21367397}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 2,
volume = 704,
place = {United States},
year = {Tue Oct 20 00:00:00 EDT 2009},
month = {Tue Oct 20 00:00:00 EDT 2009}
}