Nonlinear ion-acoustic solitary waves in an electron-positron-ion plasma with relativistic positron beam

被引：14
|
作者：
Sarma, Ridip [1 ]
Misra, Amar P. [2 ]
Adhikary, Nirab C. [3 ]
机构：
[1] Univ Sci & Technol, Dept Math, 9th Mile, Ri Bhoi, Meghalaya, India
[2] Visva Bharati Univ, Dept Math, Santini Ketan 731235, W Bengal, India
[3] Inst Adv Study Sci & Technol, Phys Sci Div, Gauhati 781035, Assam, India
来源：
CHINESE PHYSICS B | 2018年 / 27卷 / 10期
关键词：
electron-positron-ion plasma; relativistic effect; ion-acoustic wave; homogeneous balance method; SOLITONS;
D O I：
10.1088/1674-1056/27/10/105207
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The propagation characteristics of nonlinear ion-acoustic (IA) solitary waves (SWs) are studied in thermal electron- positron-ion plasma considering the effect of relativistic positron beam. Starting from a set of fluid equations and using the reductive perturbation technique, we derive a Korteweg-de Vries (KdV) equation which governs the evolution of weakly nonlinear IA SWs in relativistic beam driven plasmas. The properties of the IA soliton are studied, and it is shown that the presence of relativistic positron beam significantly modifies the characteristics of IA solitons.
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页数：6
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