Ion acoustic solitary waves in a weakly relativistic plasma with q-nonextensive electrons and thermal positrons

被引：0
作者：
Hamid Reza Pakzad
机构：
[1] Bojnourd Branch,Department of Physics
[2] Islamic Azad University,undefined
来源：
Astrophysics and Space Science | 2011年 / 334卷
关键词：
Ion acoustic solitary waves; Nonextensive electrons;
D O I：
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摘要：
Nonlinear ion acoustic solitary waves (IASWs) are addressed in a weakly relativistic plasma consisting of cold ion fluid, q-nonextensive electron velocity distribution and Boltzmann distributed positron. The Korteweg-de Vries- (KdV) equation is derived by reductive perturbation method. We investigate the effect of nonextensive electrons on solitary waves in this medium. It is found that only compressive solitons can be appeared in the existence of nonextensive electrons. It is shown that the structure of soliton depend sensitively on the q-nonextensive parameter.
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页码：337 / 343
页数：6
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