Small amplitude electron-acoustic solitary waves in a plasma with nonthermal electrons

Tarsem Singh Gill, Harvinder Kaur and Nareshpal Singh Saini

Chaos, Solitons & Fractals, 2006, vol. 30, issue 4, 1020-1024

Abstract: In the present investigation electron-acoustic solitons in a plasma consisting of cold and nonthermal electrons are studied. Using reductive perturbation method, a KdV equation is derived for electron-acoustic solitons propagating in a collisionless plasma. Nonvanishing and negative value of coefficient of nonlinear term of KdV equation implies that only rarefactive solitons are permissible. This equation is solved in a stationary frame to obtain the expression for the soliton solution. Further, it is found that with the increase of nonthermal electron distribution parameter, the peak amplitude of solitons decreases.

Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:30:y:2006:i:4:p:1020-1024

DOI: 10.1016/j.chaos.2005.09.070

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