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Parametric decay in a two-electron-temperature plasma

Published online by Cambridge University Press:  13 March 2009

S. Guha  and
Meenu Asthana
S. Guha
Affiliation:
Department of Physics, Ravishankar University, Raipur-492 010, India
Meenu Asthana
Affiliation:
Department of Physics, Ravishankar University, Raipur-492 010, India
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Abstract

Nonlinear decay of an ordinary electromagnetic pump wave into an electro-acoustic wave and an upper-hybrid wave in a two-electron-temperature plasma has been investigated analytically. In contrast with the work of Sharma, Ramamurthy & Yu (1984), it is found that the decay can take place in the absence of the restrictive condition Ti ≫ Te and the plasma be magnetized. Using a hydrodynamical model of the plasma, the nonlinear dispersion relation and growth rate are obtained. A comparison of the present investigation is made with earlier work, and its possible application to the ELMO bumpy torus is discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 43 , Issue 3 , June 1990 , pp. 451 - 456
Copyright
Copyright © Cambridge University Press 1990

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References

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