Dust-acoustic shock waves in a charge varying electronegative magnetized dusty plasma with suprathermal electrons

被引：9

作者：

Tribeche, Mouloud ^{[1
]}

Bacha, Mustapha ^{[1
]}

机构：

[1] Univ Bab Ezzouar, Fac Sci Phys, USTHB, TPL,PPG, Algiers 16111, Algeria

来源：

PHYSICS OF PLASMAS | 2012年 / 19卷 / 12期

关键词：

DISPERSION FUNCTION; DISTRIBUTIONS; MODES; FIELD;

D O I：

10.1063/1.4773217

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：

The combined effects of an oblique magnetic field and electron suprathermality on weak dust-acoustic (DA) waves in a charge varying electronegative dusty plasmas with application to the Halley Comet are investigated. The correct suprathermal electron charging current is derived based on the orbit-motion limited approach. A weakly nonlinear analysis is carried out to derive a Korteweg-de Vries-Burger equation. The electron suprathermality, the obliqueness, and magnitude of the magnetic field are found to modify the dispersive properties of the DA shock structure. Our results may aid to explain and interpret the nonlinear oscillations that may occur in the Halley Comet plasma. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4773217]

引用

页数：7

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