Structure of interplanetary shock waves from radio scintillation data

被引:9
作者
Shishov, VI
Vlasov, VI
Kojima, M
机构
[1] PN Lebedev Phys Inst, Ctr Astro Space, Moscow 117924, Russia
[2] Nagoya Univ, Solar Terr Envinronm Lab, Aichi 442, Japan
关键词
D O I
10.1023/A:1004982129259
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The distributions of scintillation index in the interior region of an interplanetary shock wave are obtained by using scintillation observations from Pushchino, Russia. The dependence of scintillation index m on the distance from a shock front surface Delta r is strong and can be represented by a two-component structure of distribution of turbulence level (delta N-e)(2). The first component occupies a narrow layer with thickness of about 0.02 AU and size of about 0.3 AU, in which the relative enhancement of delta N-e is about root 15. The second component occupies a layer with thickness Delta r = 0.1 AU and size of about 0.7 AU, in which the relative enhancement of delta N-e is about root 2. The typical distance of the shock front from the Sun was on the order of 1 AU in the events that we investigated.
引用
收藏
页码:373 / 386
页数:14
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