Physics
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992soph..140....7e&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 140, no. 1, July 1992, p. 7-17. Research supported by Ministry of Science and Higher Educat
Physics
5
Energy Dissipation, Magnetoacoustic Waves, Optical Thickness, Plasma Heating, Solar Atmosphere, Solar Corona, Solar Activity, Solar Terrestrial Interactions, Thermal Conductivity, Wave Propagation
Scientific paper
The dissipation of ducted, fast, magnetoacoustic waves by ion viscosity and electron heat conduction in a radiating, optically thin atmosphere has been re-examined and the results compared with two previously published, conflicting sets of results. In general, the dissipation length of the waves increases with magnetic field strength and decreases with increase in density, and is a few wavelengths for waves of periods of several seconds in the active corona. Oscillations with such periods have been observed in the corona, so waves could, given the right conditions, be dissipated there, the energy so released being a contributory factor to coronal heating.
Edwin Patricia M.
Zheliazkov I.
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