Nonlinear propagation of cosmic rays in the galaxy

被引：0

作者：

V. S. Ptuskin

V. N. Zirakashvili

A. A. Georgieva

E. G. Klepach

机构：

[1] Russian Academy of Sciences,Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation

来源：

Bulletin of the Russian Academy of Sciences: Physics | 2007年 / 71卷 / 4期

关键词：

Interstellar Medium; Supernova Remnant; Nonlinear Propagation; Galactic Disk; Force Line;

D O I：

10.3103/S1062873807040065

中图分类号：

学科分类号：

摘要：

Propagation of cosmic rays in the interstellar medium after their emergence from sources—supernova remnants—may be accompanied by the development of flow instability which forms high magnetohydrodynamic turbulence and leads to nonlinear cosmic ray diffusion. A self-similar solution to the nonlinear diffusion equations is found and it is shown that the noted mechanism leads to an effective diffusion coefficient of cosmic rays, which coincides with the empirical value.

引用

页码：461 / 463

页数：2

共 23 条

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