Electron-acoustic solitons in plasma with nonthermal electrons

被引：30
|
作者：
Pakzad, Hamid Reza [1 ]
Tribeche, Mouloud [2 ]
机构：
[1] Islamic Azad Univ, Dept Phys, Bojnourd Branch, Tehran, Iran
[2] Univ Bab Ezzouar, Fac Sci Phys, Plasma Phys Grp, Theoret Phys Lab,USTHB, Algiers 16111, Algeria
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2010年 / 330卷 / 01期
关键词：
Electron-acoustic waves; Solitary waves; Sagdeev potential; Mach number; Nonthermal electrons; SOLITARY WAVES; DOUBLE-LAYERS;
D O I：
10.1007/s10509-010-0367-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Nonlinear electron-acoustic solitary waves (EASWs) are studied using Sagdeev's pseudo-potential technique in a collisionless unmagnetized plasma consisting of a cold electron fluid, nonthermal hot electrons and stationary ions. It is shown that the presence of fast nonthermal electrons may modify the parametric region where electron-acoustic solitons may exist. Our investigation is of wide relevance to astronomers and space scientists working on interstellar space plasmas.
引用
收藏
页码：95 / 99
页数：5
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