Production of ultrarelativistic electrons by oblique magnetosonic shock waves

被引：6

作者：

Bessho, N ^{[1
]}

Maruyama, K ^{[1
]}

Ohsawa, Y ^{[1
]}

机构：

[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1999年 / 68卷 / 01期

关键词：

ultrarelativistic electrons; particle acceleration; oblique shock waves; particle simulation;

D O I：

10.1143/JPSJ.68.1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electron motion in an oblique magnetosonic wave is studied by means of a one-dimensional, relativistic, electromagnetic particle code with full ion and electron dynamics. It is found that high-energy electrons can be produced; electrons with Lorentz factors gamma > 100 have been observed in the simulations. They are reflected and then trapped by the wave. This phenomenon occurs in a large-amplitude oblique shock in a strong magnetic field such that omega(ce) greater than or similar to omega(pe). The acceleration mechanism is given, and the dependence of gamma on plasma parameters, such as the propagation angle, is discussed.

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页码：1 / 4

页数：4

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