| 行星际激波的多方指数 |
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| 引用本文： | 刘绍亮,刘四清.行星际激波的多方指数[J].空间科学学报,1996,16(4):282-286. |
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| 作者姓名： | 刘绍亮 刘四清 |
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| 作者单位： | [1]中国科学技术大学地球和空间科学系 [2]中国科学院空间科学与应用研究中心日球物理数值开放 |
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| 摘 要： | 从Ｈｅｌｉｏｓ等６个飞船１９７２年至１９８７年的太阳风观测资料找出９８６个行星际快激波，利用ＭＨＤ Ｒａｎｋｉｎｅ－Ｈｕｇｏｎｉｏｔ方程组分析了激波上下游参数关系，确定出每一个激波的最佳多方指数。结果指出，多方指数有一分布，其最可几值约在１．７０－１．７５之间。
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| 关 键 词： | 磁流体力学 行星际激波 |
POLYTROPIC INDICES IN INTERPLANETARY SHOCK |
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| Liu Shao-liang, Tang De-shuang.POLYTROPIC INDICES IN INTERPLANETARY SHOCK[J].Chinese Journal of Space Science,1996,16(4):282-286. |
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| Authors: | Liu Shao-liang Tang De-shuang |
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| Abstract: | From the data observed by Helios et al. during 1972 to 1987, 986 interplanetary fast shocks are picked out and the most appropriate polytropic index for every shock is determined by applying MHD Rankine-Hugoniot relations. The results demonstrate that the values of polytropic index scatter in a certain range, and the most probable value is approximately between 1.70 and 1.75. |
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| Keywords: | Magnetohydrodynamics Interplanetary shock |
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