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Magnetic reconnection: flares and coronal heating in Active Galactic Nuclei | T. Di Matteo
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28 May 1998 | Subject: | astro-ph | Affiliation: | IOA, Cambridge, UK | Abstract: | A 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 | Services: | Forum | Review | PDF | Favorites |
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