| 弓激波前内透射离子动力学横场流静电不稳定性 |
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| 引用本文： | 徐跃民,周国成.弓激波前内透射离子动力学横场流静电不稳定性[J].空间科学学报,1991,11(2):91-97. |
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| 作者姓名： | 徐跃民 周国成 |
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| 作者单位： | 中国科学院空间科学与应用研究中心 北京
(徐跃民，周国成)，中国科学院空间科学与应用研究中心 北京(朱连芳) |
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| 摘 要： | 本文讨论了地球弓激波前内背景电子速度分布函数为平顶形式时的透射离子横场流静电不稳定性.结果表明,在超临界(Alfvén Mach数M_A>3)准垂直激波区(激波法向与行星际磁场之间的夹角75°)情况下,透射离子流产生的静电不稳定性增长率峰值要比电子速度为Maxwell分布时更加显著,并满足动力学性质.
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| 关 键 词： | 弓激波 平顶分布函数 透射离子 |
A KINETIC CROSS-FIELD STREAMING ELECTROSTATICINSTABILITY FOR TRANSMITTED IONS WITHIN THEBOW SHOCK FRONT |
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| Xu Yue-min Zhou Guo-cheng Zhu Lian-fang.A KINETIC CROSS-FIELD STREAMING ELECTROSTATICINSTABILITY FOR TRANSMITTED IONS WITHIN THEBOW SHOCK FRONT[J].Chinese Journal of Space Science,1991,11(2):91-97. |
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| Authors: | Xu Yue-min Zhou Guo-cheng Zhu Lian-fang |
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| Abstract: | The kinetic cross-field streaming electrostatic instability drivenby transmitted ions in high Alfven Mach number regime within the Earth's bow shock front near quasi-pependicular shocks is studied in this paper. The results show that the maximum growth rate for flat-topped electron distribution are greater than that in the case of Maxwellian distribution. |
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| Keywords: | Earth's bow shock Flat-topped distribution Transmittel ion Cross-field Streaming electrostatic instability |
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