TIME-DEPENDENT DIFFUSIVE ACCELERATION OF TEST PARTICLES AT SHOCKS

被引：52

作者：

DRURY, LO

机构：

[1] Dublin Institute for Advanced Studies, 5 Merrion Square

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1991年 / 251卷 / 02期

关键词：

D O I：

10.1093/mnras/251.2.340

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The acceleration of test particles at a steady plane non-relativistic shock is considered. Analytic expressions are found for the mean and the variance of the acceleration time distribution in the case where the diffusion coefficient has an arbitrary dependence on position and momentum. These expressions are used as the basis for an approximation scheme which is shown, by comparison with numerical solutions, to give an excellent representation of the time-dependent spectrum.

引用

页码：340 / 350

页数：11

共 11 条

[1]

Axford W. I., 1981, 17th International Cosmic Ray Conference, P155

[2]

Axford W. I., 1977, P 15 INT C COSM RAYS, V11, P132

[3] ACCELERATION OF COSMIC-RAYS IN SHOCK FRONTS .2. [J].