Quasi-parallel propagating solitons in magnetised relativistic electron-positron plasmas

被引：1

作者：

Ruderman, Michael S. ^{[1
,2
,3
]}

Petrukhin, Nikolai S. ^{[4
]}

Pelinovsky, Efim ^{[4
,5
]}

Kataeva, Liliya Y. ^{[6
]}

机构：

[1] Univ Sheffield, Sch Math & Stat, Hicks Bldg, Hounsfield Rd, Sheffield S3 7RH, England

[2] Russian Acad Sci, Space Res Inst IKI, Moscow, Russia

[3] Lomonosov Moscow State Univ, Moscow Ctr Fundamental & Appl Math, Moscow, Russia

[4] Natl Res Univ Higher Sch Econ, Moscow, Russia

[5] Inst Appl Phys, Dept Nonlinear Geophys Proc, Nizhnii Novgorod, Russia

[6] Nizhnii Novgorod State Tech Univ, Nizhnii Novgorod, Russia

来源：

JOURNAL OF PLASMA PHYSICS | 2023年 / 89卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

astrophysical plasmas; plasma nonlinear phenomena; plasma waves; NONLINEAR-WAVE PROPAGATION; SOLITARY ALFVEN MODES; MODULATIONAL INSTABILITY; SCHRODINGER-EQUATION; HYDROMAGNETIC-WAVES; MICROPOLAR MEDIA; GENERATION; FIELD;

D O I：

10.1017/S0022377823000156

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：

In this article, we study nonlinear waves propagating along the background magnetic field in relativistic electron-positron plasmas. Using the reductive perturbation method, we derive a three-dimensional equation describing these waves. When the perturbations do not vary in the directions orthogonal to the background magnetic field this equation reduces to the vector modified Kortewed-de Vries equation. We present solutions of the obtained equation in the form of planar solitary waves and describe the results of study of their stability with respect to transverse perturbations. We also study numerically non-planar solitary waves.

引用

页数：21

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