We have developed a model in which the diffuse synchrotron emission from radio mini-halos, observed in some cooling flow clusters, is due to a relic population of relativistic electrons reaccelerated by MHD turbulence via Fermi-like processes. In this model the energetics is supplied by the cooling flow itself. Here, the model (successfully applied to the Perseus cluster, A426) is preliminarily applied to the possible mini-halo candidate A2626, for which we present VLA data.
Cite
@article{arxiv.astro-ph/0207145,
title = {Modeling radio mini-halos in cooling flow clusters},
author = {Myriam Gitti and Gianfranco Brunetti and Giancarlo Setti and Luigina Feretti},
journal= {arXiv preprint arXiv:astro-ph/0207145},
year = {2007}
}
Comments
5 pages; to be published in the Proceedings of the Conference on "Matter and Energy in Clusters of Galaxies" held on April 23th-27th 2002 in Chung-Li, Taiwan; ASP Conf. Series, eds. S. Bowyer & C.-Y. Hwang