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Analytical study of plasma heating by resonant absorption of the modified external kink mode

Published online by Cambridge University Press:  13 March 2009

D. Van Eester ,
M. Goossens  and
S. Poedts
D. Van Eester
Affiliation:
Laboratoire de Physique des Plasmas – Laboratorium voor Plasmafysika, Association ‘Euratom – Etat Belge’ – Associatie ‘Euratom – Belgische Staat’, Ecole Royale Militaire – Koninklijke Militaire School, Renaissancelaan 30, B–1040 Brussels, Belgium
M. Goossens
Affiliation:
Astronomisch Instituut, Katholieke Universiteit Leuven, Celestijnenlaan 200B, B–3001 Heverlee, Belgium
S. Poedts
Affiliation:
Max Planck Institut für Plasmaphysik, Euratom Association, Boltzmannstrasse 2, D–8046 Garching, Germany
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Abstract

A simplified analytic description is used to understand recent results of large-scale numerical simulations of resonant absorption and to disentangle the basic physics. It is shown that very efficient absorption takes place at frequencies where a discrete external kink and an Alfvén continuum mode merge into a modified external kink mode. The relation between this ‘hybrid’ mode and ‘pure’ continuum or discrete spectrum modes is discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 45 , Issue 1 , February 1991 , pp. 3 - 18
Copyright
Copyright © Cambridge University Press 1991

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References

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