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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Two-dimensional hybrid model of wave and beam heating of multi-ion solar wind plasma
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Two-dimensional hybrid model of wave and beam heating of multi-ion solar wind plasma

机译：二维混合模型的波和梁multi-ion太阳风等离子体加热

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摘要

We study the heating and the acceleration of protons and heavy ions by waves in the solar wind, as well as the nonlinear influence of heavy ions on the wave structure, using a two-dimensional (2-D) hybrid model. Protons and heavy ions are treated kinetically by solving their equations of motion in the self-consistent electric and magnetic fields of the waves, while electrons are treated as a neutralizing background fluid. We use the 2-D hybrid code to investigate more realistic 2-D plasma model than previous 1-D simulation and analytical studies, which allows parallel as well as obliquely propagating waves and localized driver. Using the hybrid code, we consider for the first time the heating and acceleration of protons and heavy ions by a driven-input spectrum of Alfvén/cyclotron waves and by heavy ion beam in the multispecies coronal plasma in two spatial dimensions. We find that the ion beam is more efficient in generating temperature anisotropy than the driven wave spectrum in our model. We discuss the observational implication of the results to the solar wind.
机译：研究了加热和加速波质子和重离子的太阳能风,以及沉重的非线性影响离子波结构,使用二维(2 d)混合模型。通过解决重离子治疗活动运动方程的自洽电波的电场和磁场电子被视为中和背景流体。调查更现实的二维等离子体模型先前的一维仿真和分析研究,它允许并行以及间接传播波和本地化的司机。混合的代码,我们认为第一次加热和加速的质子和沉重离子driven-input光谱的阿尔芬/回旋波和重离子束multispecies日冕等离子体在两个空间维度。有效的生成温度各向异性比波频谱在我们的模型驱动的。讨论的观测暗示结果以太阳风。

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