DIFFUSIVE SHOCK ACCELERATION BY MULTIPLE SHOCKS

被引：47
|
作者：
MELROSE, DB [1 ]
POPE, MH [1 ]
机构：
[1] UNIV SYDNEY,SCH PHYS,SIR FRANK PACKER DEPT THEORET PHYS,SYDNEY,NSW 2006,AUSTRALIA
来源：
PROCEEDINGS ASTRONOMICAL SOCIETY OF AUSTRALIA | 1993年 / 10卷 / 03期
关键词：
D O I：
10.1017/S1323358000025716
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Diffusive shock acceleration produces a power law momentum distribution f(p)alpha p(-b, with b greater-than-or-equal-to 4 for a single shock, and b = 4 for a single strong shock. It has been shown that the distribution for acceleration at a sequence of identical shocks is flatter, approaching f(p)alpha p-3 below a high energy knee, for an arbitrarily large number of shocks. We show how this flatter distribution arises and discuss the range of momenta over which it extends after a finite number of shocks.
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收藏
页码：222 / 224
页数：3
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