Effects of Vortex-Like Ion Distribution on Dust-Acoustic Solitary Waves in a Self-Gravitating Opposite Polarity Dusty Plasmas

被引：9

作者：

Paul, A. ^{[1
]}

Mandal, G. ^{[1
]}

Mamun, A. A. ^{[2
]}

Amin, M. R. ^{[1
]}

机构：

[1] East West Univ, Dept Math & Phys Sci, Dhaka 1212, Bangladesh

[2] Jahangirnagar Univ, Dept Phys, Dhaka 1342, Bangladesh

来源：

PHYSICS OF WAVE PHENOMENA | 2019年 / 27卷 / 04期

关键词：

CHARGED DUST; DYNAMICS; ELECTRON; PROPAGATION; PARTICLES; POWDERS; SIZE;

D O I：

10.3103/S1541308X19040034

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A self-gravitating opposite polarity dust plasma (SGOPDP) medium (containing both positively and negatively charged dust, vortex-like distributed ions and Maxwellian electrons) has been considered in order to examine the effect of vortex-like (trapped) ion distribution on dust-acoustic (DA) solitary waves (SWs) propagating in SGOPDP medium. The reductive perturbation method, which is valid for small but finite amplitude SWs, is employed to derive a modified Korteweg-de Vries equation having stronger nonlinearity. The basic features of the DA SWs in SGOPDP medium are found to be significantly modified by the combined effect of self-gravitational field and vortex-like ion distribution. The results of this paper have many implications in space and laboratory dusty plasmas.

引用

页码：261 / 267

页数：7

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