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1 LAOG - Laboratoire d-Astrophysique de Grenoble 2 Institute for Plasma Physics Rijnhuizen - Institute for Plasma Physics Rijnhuizen

Abstract : We present self-similar models of resistive viscous Keplerian disks drivingnon-relativistic magnetohydrodynamics MHD jets becoming superfast-magnetosonic. We show that in order to obtain such solutions, thethermal pressure must be a sizeable fraction of the poloidal magnetic pressure at the Alfven surface. These steady solutions which undergo a recollimation shock causallydisconnected from the driving engine, account for structures with a hightemperature plasma in the sub-Alfvenic region. We suggest that only unsteady outflows with typical time-scales of several disk dynamicaltime-scales can be produced if the suitable pressure conditions are notfulfilled.

Keywords : galaxies: jets ISM: jets and outflows MHD accretion disks accretion





Autor: Jonathan Ferreira - Fabien Casse -

Fuente: https://hal.archives-ouvertes.fr/



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