Structure of Interplanetary Shock Waves from Radio Scintillation Data |
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| Authors: | Shishov V I Vlasov V I Kojima M |
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| Institution: | (1) Astro Space Center, P.N. Lebedev Physical Institute, Leninskii prospect 53, 117924 Moscow, Russia;(2) Solar-Terrestrial Environment Laboratory, Nagoya University, Aichi, 442, Japan |
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| Abstract: | 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  r is strong and can be represented by a two-component structure of distribution of turbulence level  Ne)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 Ne is about  15. The second component occupies a layer with thickness r=0.1 AU and size of about 0.7 AU, in which the relative enhancement of Ne is about 2. The typical distance of the shock front from the Sun was on the order of 1 AU in the events that we investigated. |
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