Formation of Nonlinear Solitary Vortical Structures by Drift and Ion-Acoustic Waves in Electron-Positron-Ion Plasmas

被引：1

作者：

Kahlon, L. Z. ^{[1
]}

Javaid, I. ^{[1
]}

Kaladze, T. D. ^{[2
,3
]}

机构：

[1] Forman Christian Coll, Dept Phys, Ferozpur Rd, Lahore 54600, Pakistan

[2] Tbilisi State Univ, I Vekua Inst Appl Math, 2 Univ Str, GE-0186 Tbilisi, Georgia

[3] I Javakhishvili Tbilisi State Univ, E Andronikashvili Inst Phys, GE-0128 Tbilisi, Georgia

来源：

BRAZILIAN JOURNAL OF PHYSICS | 2020年 / 50卷 / 03期

关键词：

Electron-positron-ion (EPI) plasmas; Drift and ion-acoustic waves; Nonlinear solitary vortices;

D O I：

10.1007/s13538-020-00745-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

To describe the nonlinear propagation of electrostatic drift and ion-acoustic waves (DIAWs), the generalized Hasegawa-Mima equation containing both vector (Jacobian) and scalar (Korteweg-de Vries type) nonlinearities is obtained for electron-positron-ion (EPI) plasmas. In addition, density and temperature non-homogeneities of electrons and positrons are taken into account. Appropriate set of 3D equations consisting of generalized Hasegawa-Mima equation for the electrostatic potential and equation of parallel to magnetic field motion of ions are obtained to describe the formation of coherent dipole and large-scale monopole vortices.

引用

页码：291 / 297

页数：7

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