Interaction of Relativistic Electrons with Packets of the Electromagnetic Ion Cyclotron Waves of Finite Length and Low Amplitude

被引：7

作者：

Grach, V. S. ^{[1
]}

Demekhov, A. G. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Gaponov Grekhov Inst Appl Phys, Nizhnii Novgorod 603166, Russia

[2] Polar Geophys Inst, Apatity 184209, Russia

来源：

PLASMA PHYSICS REPORTS | 2023年 / 49卷 / 07期

基金：

俄罗斯科学基金会;

关键词：

wave-particle interaction; radiation belts; AMPLIFICATION; MAGNETOSPHERE; SCATTERING;

D O I：

10.1134/S1063780X23600561

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：

Interaction of relativistic electrons with packets of the electromagnetic ion cyclotron waves of finite length and low amplitude in the Earth's radiation belts is analyzed. The variance of the equatorial pitch angle of electrons for wave packets located near the Earth's geomagnetic equator is estimated analytically within the linear approximation. The analytical estimates agree with the results of numerical test-particle simulation. It is demonstrated that reduction in the packet length extends the interaction range to lower energies beyond the range of resonant energies. Such an interaction can result in precipitation of electrons with energies on the order of several hundred kiloelectronvolts into the ionosphere.

引用

页码：901 / 911

页数：11

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