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29 March 2024
 
  » arxiv » astro-ph/9805347

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Magnetic reconnection: flares and coronal heating in Active Galactic Nuclei
T. Di Matteo ;
Date 28 May 1998
Subject astro-ph
AffiliationIOA, Cambridge, UK
AbstractA magnetically-structured accretion disk corona, generated by buoyancy instability in the disk, can account for observations of flare--like events in Active Galactic Nuclei. We examine how Petschek magnetic reconnection, associated with MHD turbulence, can result in a violent release of energy and heat the magnetically closed regions of the corona up to canonical X-ray emitting temperatures. X-ray magnetic flares, the after effect of the energy released in slow shocks, can account for the bulk of the X-ray luminosity from Seyfert galaxies and consistently explain the observed short-timescale variability.
Source arXiv, astro-ph/9805347
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