Ion acoustic solitary waves in plasma with nonthermal electron, positron and warm ion

Author: Pakzad, Hamid

Source: Astrophysics and Space Science, Volume 323, Number 4, October 2009 , pp. 345-350(6)

Publisher: Springer

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Abstract:

In this paper, the characteristics of ion acoustic solitary waves are studied in plasmas containing warm ion fluid, non-thermally distributed electron and positron. We study the effects of non-thermal electrons and ion temperature on solitons by Pseudo-potential method and show that the parametric region where ion acoustic solitons can exist is modified. We also obtain linear dispersion relation by using the standard normal-modes analysis.

Keywords: 52.35.Fp; 52.35.Mw; 52.35.Sb; Ion acoustic waves; Nonlinear phenomena; Sagdeev potential; Solitons

Document Type: Research Article

DOI: http://dx.doi.org/10.1007/s10509-009-0138-z

Affiliations: Department of Physics, Islamic Azad University, Bojnourd Branch, Iran, Email: ttaranomm83@yahoo.com

Publication date: October 1, 2009

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