Ion acoustic solitary waves in plasmas with nonextensive distributed electrons, positrons and relativistic thermal ions

被引：0
作者：
M. G. Hafez
M. R. Talukder
R. Sakthivel
机构：
[1] Chittagong University of Engineering and Technology,Department of Mathematics
[2] University of Rajshahi,Department of Applied Mathematics
[3] University of Rajshahi,Department of Applied Physics and Electronic Engineering
[4] Sungkyunkwan University,Department of Mathematics
来源：
Indian Journal of Physics | 2016年 / 90卷
关键词：
Electrostatic propagations; Solitons; Nonextensive electrons and positrons; The ansatz method; 52.35.Fp; 52.35.Sb; 52.27.Ny; 02.30.Jr;
D O I：
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摘要：
The theoretical and numerical studies have been investigated on nonlinear propagation of weakly relativistic ion acoustic solitary waves in an unmagnetized plasma system consisting of nonextensive electrons, positrons and relativistic thermal ions. To study the characteristics of nonlinear propagation of the three-component plasma system, the reductive perturbation technique has been applied to derive the Korteweg–de Vries equation, which divulges the soliton-like solitary wave solution. The ansatz method is employed to carry out the integration of this equation. The effects of nonextensive electrons, positrons and relativistic thermal ions on phase velocity, amplitude and width of soliton and electrostatic nonlinear propagation of weakly relativistic ion acoustic solitary waves have been discussed taking different plasma parameters into consideration. The obtained results can be useful in understanding the features of small amplitude localized relativistic ion acoustic solitary waves in an unmagnetized three-component plasma system for hard thermal photon production with relativistic heavy ions collision in quark–gluon plasma as well as for astrophysical plasmas.
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页码：603 / 611
页数：8
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