Obliquely propagating nonextensive dust-ion-acoustic solitary waves in a dusty magnetoplasma

被引：20
|
作者：
Ashraf, S. [1 ]
Yasmin, S. [1 ]
Asaduzzaman, M. [2 ]
Mamun, A. A. [1 ]
机构：
[1] Jahangirnagar Univ, Dept Phys, Dhaka 1342, Bangladesh
[2] East West Univ, Dept Elect & Commun Engn, Dhaka 1212, Bangladesh
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2013年 / 344卷 / 01期
关键词：
Dust-ion-acoustic solitary waves; Korteweg-de Vries equation; Nonextensive electrons; Reductive perturbation method; External magnetic field; DOUBLE-LAYERS; NONPLANAR GEOMETRY; GARDNER SOLITONS; ENTROPY APPROACH; SHOCK-WAVES; PLASMA; ELECTRONS; STATISTICS; 2-ION-TEMPERATURE; THERMOSTATISTICS;
D O I：
10.1007/s10509-012-1311-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The basic features of obliquely propagating dust-ion-acoustic (DIA) solitary waves (SWs) in a nonextensive magnetized dusty plasma (containing non-extensive electrons, inertial ions, and negatively charged stationary dust) have been rigorously investigated. The reductive perturbation method has been employed to derive the Korteweg-de Vries equation which admits a solitary wave solution. The combined effects of electron nonextensivity and external magnetic field (obliqueness), which are found to significantly modify the basic features of the small but finite-amplitude DIA SWs, have explicitly been examined. Our present analysis can be utilized and very effective for understanding the localized nonlinear structures-the DIA SWs in different astrophysical and cosmological scenarios (viz. stellar polytropes, quark-gluon plasma, protoneutron stars, etc.).
引用
收藏
页码：145 / 151
页数：7
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