A nonlinear Zakharov-Kuznetsov equation in magnetized plasma with q-nonextensive electrons velocity distribution

被引：25

作者：

Bains, A. S. ^{[1
]}

Tribeche, Mouloud ^{[2
]}

Saini, N. S. ^{[3
]}

Gill, T. S. ^{[3
]}

机构：

[1] Guru Nanak Dev Univ, Dept Phys, Amritsar 143005, Punjab, India

[2] Univ Bab Ezzouar, Theoret Phys Lab, Plasma Phys Grp, Fac Sci Phys,USTHB, Algiers 16111, Algeria

[3] Guru Nanak Dev Univ, Dept Phys, Amritsar 143005, Punjab, India

来源：

PHYSICS OF PLASMAS | 2011年 / 18卷 / 10期

关键词：

perturbation theory; plasma ion acoustic waves; plasma magnetohydrodynamics; plasma solitons; plasma transport processes; ION-ACOUSTIC SOLITONS; WAVES;

D O I：

10.1063/1.3642610

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

By using the reductive perturbation method (RPM), a nonlinear Zakharov-Kuznetsov (ZK) equation for ion-acoustic solitary waves (IASWs) is derived for a magnetized plasma in which the electrons are nonextensively distributed. The combined effects of electron nonextensivity, strength of magnetic field, and obliqueness on the ion acoustic (IA) solitary profile are analyzed. Three different ranges of the nonextensive q-parameter are considered. It is observed that the system may support both compressive as well as rarefactive solitons. The magnetic field has no effect on the amplitude of solitary waves whereas the obliqueness affects both the amplitude as well as the width of the solitary wave structures. (C) 2011 American Institute of Physics. [doi:10.1063/1.3642610]

引用

页数：4

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