A note on magnetized coronae
Abstract
X-ray binaries and AGN show observational evidence for magnetized hot plasmas. Despite years of data, very little is known on these {\it coronae} especially on the mechanisms responsible for their heating, and most models simply assume their existence. However, understanding its properties has now become a key issue of the AGN and microquasars modelling. Here we consider the effect of a strong vertical magnetic field on the corona AGN and X-ray binaries and show that its modeling (structure, heating) must be reconsidered. As a first step, we present one mechanism that could extract energy from the accretion disks and deposits it in the coronae: the {\it magnetic pumping
Keywords
Cite
@article{arxiv.0802.2662,
title = {A note on magnetized coronae},
author = {R. Belmont and M. Tagger},
journal= {arXiv preprint arXiv:0802.2662},
year = {2008}
}
Comments
Poster at the international workshop 'Simbol-X: the hard X-ray universe in focus' held in Bologna, 14-16 May 2007. To appear in Memorie della SaIt, 2 pages