Zakharov-Kuznetsov Equation for Describing Low-Frequency Nonlinear Dust-Acoustic Perturbations in the Dusty Magnetosphere of Saturn

被引：0
作者：
Kopnin, S. I. [1 ]
Shokhrin, D. V. [2 ]
Popel, S. I. [1 ]
机构：
[1] Russian Acad Sci, Space Res Inst, Moscow 117997, Russia
[2] Natl Res Univ, Higher Sch Econ, Moscow 101000, Russia
来源：
PLASMA PHYSICS REPORTS | 2024年 / 50卷 / 01期
关键词：
dusty plasma; Zakharov-Kuznetsov equation; dust-acoustic solitons; kappa distribution; S-aturn's magnetosphere; PLASMA; SOLITONS; WAVES; ELECTRONS; GRAINS;
D O I：
10.1134/S1063780X23601396
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 paper presents a description of low-frequency nonlinear dust-acoustic waves in the dusty magnetosphere of Saturn, which contains two types of electrons (hot and cold) following the kappa distribution, magnetospheric ions, and charged dust particles. The Zakharov-Kuznetsov equation for the corresponding conditions is derived, describing the nonlinear dynamics of dust-acoustic waves in the case of low frequencies and a pancake-shaped wave packet along the external magnetic field. It is shown that, under the conditions of Saturn's magnetosphere, solutions of the Zakharov-Kuznetsov equation exist in the form of one-dimensional and three-dimensional solitons. Possible observations of such solitons in future space missions are discussed.
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收藏
页码：55 / 64
页数：10
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