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Thermal Overstability Of Hydromagnetic Surface-Waves

Joarder, PS and Gokhale, MH and Venkatakrishnan, P (1987) Thermal Overstability Of Hydromagnetic Surface-Waves. In: Solar Physics, 110 (2). pp. 255-270.

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Abstract

We investigate the effects of radiative heat losses and thermal conductivity on the hydromagnetic surface waves along a magnetic discontinuity in a plasma of infinite electrical conductivity. We show that the effects of radiative heat losses on such surface waves are appreciable only when values of the plasma pressure on the two sides of the discontinuity are substantially different. Overstability of a surface wave requires that the medium in which it gives larger first-order compression should satisfy the criterion of Field (1965). Possible applications of the study to magnetic discontinuities in solar corona are briefly discussed.

Item Type: Journal Article
Additional Information: Copy right of this article belongs to Springer.
Department/Centre: Division of Physical & Mathematical Sciences > Astronomy and Astrophysics Programme
Date Deposited: 11 Jan 2010 09:56
Last Modified: 19 Sep 2010 05:33
URI: http://eprints.iisc.ernet.in/id/eprint/20622

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