Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5402
Title: Active galactic nuclei feedback and clusters
Authors: Nath, Biman B.
Keywords: X-rays
galaxies: clusters cosmology
Issue Date: Dec-2011
Publisher: Indian Academy of Sciences / Springer
Citation: Journal of Astrophysics and Astronomy, 2011, Vol.32, p545
Abstract: The Intracluster Medium (ICM) is believed to have been affected by feedback from Active Galactic Nuclei (AGN) and/or supernovae-driven winds. These sources are supposed to have injected entropy into the ICM gas. The recently determined universal pressure profile of the ICM gas has been used and after comparing with the entropy profile of the gas from gravitational effects of the dark matter halo, the additional entropy injected by non-gravitational sources, as a function of the total cluster mass is determined. The current observational data of red-shift evolution of cluster scaling relation is shown that allow models in which the entropy injection decreases at high red-shift.
Description: open access
URI: http://hdl.handle.net/2289/5402
ISSN: 0250-6335
0973-7758 (Online)
Alternative Location: http://dx.doi.org/10.1007/s12036-011-9112-6
Copyright: 2011 Indian Academy of Sciences,
Appears in Collections:Research Papers (A&A)

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