Nonplanar ion-acoustic Gardner solitons in a pair-ion plasma with nonextensive electrons and positrons

被引：38
|
作者：
Ghosh, Uday Narayan [1 ]
Ghosh, Deb Kumar [1 ]
Chatterjee, Prasanta [1 ]
Bacha, Mustapha [2 ]
Tribeche, Mouloud [2 ]
机构：
[1] Visva Bharati Univ, Dept Math, Santini Ketan 731235, W Bengal, India
[2] Univ Bab Ezzouar, USTHB, Fac Sci Phys, Theoret Phys Lab,Plasma Phys Grp, Algiers 16111, Algeria
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2013年 / 343卷 / 01期
关键词：
Nonplanar solitary waves; Electron-positron-ion plasma; q-distribution; Modified Gardner equation; SOLITARY WAVES; INSTABILITY; SYSTEMS;
D O I：
10.1007/s10509-012-1221-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The properties of nonplanar (cylindrical and spherical) ion-acoustic solitary waves (IA SWs) in an unmagnetized, collisionless electron-positron-ion (e-p-i) plasma, whose constituents are q-distributed electrons and positrons and inertial ions, are investigated by deriving the modified Gardner (MG) equation. The well known reductive perturbation method is employed to derive the MG equation. The basic features of nonplanar IA Gardner solitons (GSs) are discussed. It is found that the properties of nonplanar IA GSs (rarefactive and compressive) are significantly affected by the particle nonextensivity.
引用
收藏
页码：265 / 272
页数：8
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