Low frequency solitary waves in magnetized electron-positron-ion plasmas

被引：20
|
作者：
Mahmood, MA [1 ]
Mahmood, S
Mirza, AM
Saleem, H
机构：
[1] Quaid I Azam Univ, Dept Phys, Islamabad 45320, Pakistan
[2] COMSATS Inst Informat Technol, Dept Phys, Islamabad 45320, Pakistan
[3] PINSTECH Phys Res Div, Islamabad 45320, Pakistan
来源：
CHINESE PHYSICS LETTERS | 2005年 / 22卷 / 03期
关键词：
D O I：
10.1088/0256-307X/22/3/031
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Nonlinear electrostatic and electromagnetic low frequency waves are studied in magnetized electron-positron-ion (EPI) plasmas. The effects of full nonlinearity and three dimensional ion motion have been taken into account. It is shown that both density dips and humps can coexist in EPI plasmas along with bell-shaped and kink-type solitons. The new results as well as several limiting cases for comparison with earlier work have been discussed, for the sake of completeness. Relevance of this work to space, astrophysical and laboratory plasmas is pointed out.
引用
收藏
页码：632 / 635
页数：4
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