Shock drift acceleration of electrons

被引：78

作者：

Ball, L ^{[1
]}

Melrose, DB ^{[1
]}

机构：

[1] Univ Sydney, Sch Phys, RCfTA, Sydney, NSW 2006, Australia

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA | 2001年 / 18卷 / 04期

关键词：

acceleration of particles; shocks;

D O I：

10.1071/AS01047

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We review the theory of shock drift acceleration, developing the theory in detail for gyrophase-averaged particle. It is shown how both the upstream and downstream velocity spaces separate into different regions according to the interaction of the particles with the shock (reflection, transmission, head-on, overtaking). The effects of the cross-shock electric field and of the magnetic overshoot are discussed. The effectiveness of acceleration is estimated for Maxwellian and power law distributions. The condition for a beam instability to be generated by reflected particles is determined and found to be independent of the distribution function for isotropic inflowing electrons.

引用

页码：361 / 373

页数：13

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