Journal
ASTROPHYSICAL JOURNAL
Volume 704, Issue 2, Pages 915-929Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/704/2/915
Keywords
cooling flows; galaxies: clusters: general; hydrodynamics; methods: N-body simulations; X-rays: galaxies: clusters
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Funding
- Science and Technology Facilities Council
- Science and Technology Facilities Council [ST/F002858/1] Funding Source: researchfish
- STFC [ST/F002858/1] Funding Source: UKRI
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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.
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