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Energy Dissipation Mechanisms in the Solar Corona

Published online by Cambridge University Press:  04 August 2017

J. Heyvaerts
J. Heyvaerts*
Affiliation:
Observatoire de Meudon and Université Paris VII 92195 Meudon - France

Abstract

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Present ideas concerning the electric heating of the solar corona are reviewed. We consider in some more detail the dissipation of MHD waves in strong horizontal gradients of the Alfvén velocity. Then we consider the evolution of DC currents in the solar corona. Some theories aiming at the evaluation of the net rate of energy dissipation by such mechanisms will be described. A short account will be given of a recent analytical study based on a generalization of Taylor's hypothesis concerning the evolution of magnetic helicity in plasma with a large magnetic Reynolds number.

Type
Session II
Information
Symposium - International Astronomical Union , Volume 107: Unstable Current Systems and Plasma Instabilities , 1985 , pp. 95 - 111
Copyright
Copyright © Reidel 1985 

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