Vortices in a strongly magnetized electron-positron-ion plasma

被引：51

作者：

Shukla, PK ^{[1
]}

Mamun, AA

Stenflo, L

机构：

[1] Ruhr Univ Bochum, D-44780 Bochum, Germany

[2] Umea Univ, Dept Phys, SE-90187 Umea, Sweden

[3] Umea Univ, Dept Plasma Phys, SE-90187 Umea, Sweden

[4] Jahangirnagar Univ, Dept Phys, Dhaka, Bangladesh

来源：

PHYSICA SCRIPTA | 2003年 / 68卷 / 04期

关键词：

D O I：

10.1238/Physica.Regular.068a00295

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A theoretical investigation has been presented for the linear and nonlinear properties of obliquely propagating coupled low-frequency electrostatic drift and ion-acoustic (ED-IA) waves in a strongly magnetized nonuniform electron-positron-ion plasma in the presence of sheared ion flow. A result front our linear analysis is that the ED-IA waves can be unstable due to the ion sheared flow. In addition. it is shown that the nonlinear equations governing the dynamics of weakly interacting ED-IA waves admit vortex solutions of two different classes viz. a vortex chain and a double vortex.

引用

页码：295 / 297

页数：3

共 19 条

[1]

[Anonymous], 1992, SOLITARY WAVES PLASM

[2] LARGE-AMPLITUDE LOCALIZED STRUCTURES IN A RELATIVISTIC ELECTRON-POSITRON ION-PLASMA [J].