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Nonlinear plasma waves with steady-state d.c. current

Published online by Cambridge University Press:  13 March 2009

S. Rauf  and
J. A. Tataronis
S. Rauf
Affiliation:
Department of Electrical and Computer Engineering, University of Wisconsin, Madison, Wisconsin 53706, U.S.A.
J. A. Tataronis
Affiliation:
Department of Electrical and Computer Engineering, University of Wisconsin, Madison, Wisconsin 53706, U.S.A.
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Extract

Using a low-frequency, low-β model of a magnetized plasma, several nonlinear waves are studied. All the waves share the property that they have a self- consistent time-averaged current in the steady state. The first wave is a one- dimensional solitary wave that propagates obliquely to a static magnetic field. The wave magnetic field has a kink structure, which results in the production of the time-averaged current. A two-dimensional wave that propagates parallel to the background magnetic field is also discussed. This is a forced wave, requiring an antenna structure to support it in the steady state. The characteristics of the two-dimensional wave are dependent upon the wave speed, which in turn is determined by the speed of the travelling wave on the external antenna.

Type
Research Article
Information
Journal of Plasma Physics , Volume 52 , Issue 3 , December 1994 , pp. 373 - 390
Copyright
Copyright © Cambridge University Press 1994

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