Magnetic energy dissipation in a rarefied plasma by the relaxation process

Details Magnetic energy dissipation in a rarefied plasma by the relaxation process Magnetic energy dissipation in a rarefied plasma by the relaxation process

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.251..203v&link_type=abstract

In ESA Proceedings of the Joint Varenna-Abastumani International School and Workshop on Plasma Astrophysics p 203-207 (SEE N87-

Astronomy and Astrophysics

Astrophysics

Energy Dissipation, Magnetic Relaxation, Plasma Heating, Solar Corona, Magnetic Field Reconnection, Photosphere, Plasma Currents, Solar Magnetic Field

Scientific paper

The problem of coronal heating by relaxation to the minimum magnetic energy state in highly conductive plasmas is considered. Such a heating is provided by photospheric fluid motions that permanently build up coronal electric currents, likely to be force free. The redundant magnetic energy connected with these currents may be dissipated by the complex magnetic reconnection processes. This turbulence is treated here phenomenologically by introducing some characteristic relaxation time. Such an approach allows to express the rate of coronal heating in terms of a photospheric driver.

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