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Arbitrary-amplitude theory of ion-acoustic solitons in warm multi-fluid plasmas

Published online by Cambridge University Press:  13 March 2009

S. Baboolal ,
R. Bharuthram  and
M. A. Hellberg
S. Baboolal
Affiliation:
Department of Applied Mathematics† and Physics‡, University of Durban-Westville, Private Bag X54001, Durban 4000 and Plasma Physics Research Institute, Department of Physics, University of Natal, Durban 4001, South Africa
R. Bharuthram
Affiliation:
Department of Applied Mathematics† and Physics‡, University of Durban-Westville, Private Bag X54001, Durban 4000 and Plasma Physics Research Institute, Department of Physics, University of Natal, Durban 4001, South Africa
M. A. Hellberg
Affiliation:
Plasma Physics Research Institute, Department of Physics, University of Natal, Durban 4001, South Africa
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Abstract

A recently described numerical theory for obtaining the Sagdeev and real potential profiles of stationary wave forms in a plasma consisting of double-Maxwellian electrons and two or more species of warm ions is used for the study of solitons in such a plasma. The effects of ion temperature and light-ion concentration on rarefactive ion-acoustic soliton profiles in a double-ion plasma obtained with this large-amplitude theory are compared with those predicted from a Korteweg–de Vries equation. Application of the theory to the work of Nakamura and co-workers is discussed, and we draw attention to ion thermal effects.

Type
Research Article
Information
Journal of Plasma Physics , Volume 41 , Issue 2 , April 1989 , pp. 341 - 353
Copyright
Copyright © Cambridge University Press 1989

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References

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