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Arbitrary-amplitude electron acoustic solitary waves in a plasma

Published online by Cambridge University Press:  13 March 2009

Prasanta Chatterjee  and
Rajkumar Roychoudhury
Prasanta Chatterjee
Affiliation:
Physics and Applied Mathematics Unit, Indian Statistical Institute, Calcutta 700035, India
Rajkumar Roychoudhury
Affiliation:
Physics and Applied Mathematics Unit, Indian Statistical Institute, Calcutta 700035, India
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Abstract

Recently Mace et at. studied electron-acoustic solitary waves in a plasma using a pseudopotential approach. To find the finite ion-temperature Sagdeev potential, they used a numerical technique developed by Baboolal, Bharuthram & Hellberg. In this paper we show that the exact pseudopotential can be obtained in this case in an analytical form. The numerical results obtained by Mace et at. are compared with our result, and complete agreement is found. We also discuss the conditions for the existence of solitary-wave solutions, and obtain the soliton solutions in some cases when these conditions are satisfied.

Type
Research Article
Information
Journal of Plasma Physics , Volume 53 , Issue 1 , February 1995 , pp. 25 - 29
Copyright
Copyright © Cambridge University Press 1995

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References

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