Heating rate profiles in clusters of galaxies

Details Heating rate profiles in clusters of galaxies Heating rate profiles in clusters of galaxies

2007-02-26

arxiv.org/abs/astro-ph/0702683v1

Astronomy and Astrophysics

Astrophysics

6 pages, 2 figures, contribution to 'Heating vs. coooling in galaxies and galaxy clusters', Garching 2006, proceedings to be p

Scientific paper

The results of hydrodynamic simulations of the Virgo and Perseus clusters suggest that thermal conduction is not responsible for the observed temperature and density profiles. As a result it seems that thermal conduction occurs at a much lower level than the Spitzer value. Comparing cavity enthalpies to the radiative losses within the cooling radius for seven clusters suggests that some clusters are probably heated by sporadic, but extremely powerful, AGN outflows interspersed between more frequent but lower power outflows.

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