Entropy generation in merging galaxy clusters
Abstract
In McCarthy et al. (2007, astro-ph/0701335) we present an analysis of entropy generation during cluster mergers, using SPH simulations. This conference proceeding contribution summarizes some of the most important findings of that paper, without all the technical details. Our main result is that during cluster mergers, entropy is generated in two major shock episodes, that heat the gas from the inside-out, in a way that distributes most of the energy within the more massive clump. This is different from the "onion-skin" model adopted in many simple analytic models of cluster formation.
Keywords
Cite
@article{arxiv.astro-ph/0701354,
title = {Entropy generation in merging galaxy clusters},
author = {Michael Balogh and Ian McCarthy and Richard Bower and G. Mark Voit},
journal= {arXiv preprint arXiv:astro-ph/0701354},
year = {2015}
}
Comments
Replaced to correct typo in equation 3. 6 page contribution to the Heating vs. Cooling conference in Garching, August 2006. This is a short summary of the longer paper available as astro-ph/0701335