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Mode-Coupled MHD Waves in the Corona and Solar Wind

Published online by Cambridge University Press:  14 August 2015

M. Heinemann  and
S. Olbert
M. Heinemann
Affiliation:
Department of Physics, Boston College, Chestnut Hill, MA 02167
S. Olbert
Affiliation:
Department of Physics and Center for Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139

Extract

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The purpose of this paper is to outline a model of mode-coupled MHD compressional waves in the corona and solar wind. The eventual aim of this work is to be able to compute how MHD waves propagate through the corona and into the solar wind beginning with a source of Alfven or fast mode waves at the base of the corona. The necessity for consideration of mode coupling arises because of typical scalelengths in the corona. For wave sources, such as supergranulation, with wave periods of about a day, the different modes do no propagate independently, as in the WKB approximation, but are coupled because the ratio of wavelength to scalelength is of the order of one or greater.

Type
Part II. Coronal and Interplanetary Responses to Long Time Scale Phenomena
Information
Symposium - International Astronomical Union , Volume 91: Solar and Interplanetary Dynamics , 1980 , pp. 139 - 141
Copyright
Copyright © Reidel 1980