| 捕获加速新生离子对Alfvén波的激发 |
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| 引用本文： | 毛定一,吴京生.捕获加速新生离子对Alfvén波的激发[J].空间科学学报,1990(2). |
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| 作者姓名： | 毛定一 吴京生 |
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| 作者单位： | 河海大学数理系 南京
(毛定一)，马里兰大学物理科学与技术研究所 美国:(吴京生) |
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| 摘 要： | 根据准线性方程,求出了在离子持续产生并被太阳风捕获加速的情况下离子的渐近态分布函数.采用此分布函数分析了斜向传播的Alfven波的稳定性.
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| 关 键 词： | 捕获加速 新生离子 Alfen波 太阳风 |
The Excitation of Alfven Waves by Newborn and Pickup Ions |
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| Mao Ding-yi.The Excitation of Alfven Waves by Newborn and Pickup Ions[J].Chinese Journal of Space Science,1990(2). |
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| Authors: | Mao Ding-yi |
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| Abstract: | The time-asymptotic distribution function of continuously created newborn and pickup ions in solar wind is obtained by solving the quasilinear kinetic equation in which we have assumed that the turbulence consists mainly of Alfven waves. The stability analysis of obliquely propagating Alfven waves is carried out.The distribution function is found to be anisotropic in velocity space and consequently can result in the excitation of Alfven waves via wave-particle interaction processes. The growthrate Is the highest in the case of parallel propagation. |
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| Keywords: | Pickup ions Newborn ions Alfven wave Solar wind |
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