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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Nonlinear interaction of 3-D kinetic Alfvén wave and fast magnetosonic wave
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Nonlinear interaction of 3-D kinetic Alfvén wave and fast magnetosonic wave

机译：三维动力学阿尔芬波的非线性相互作用和快磁声波

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摘要

The nonlinear interaction of 3-D kinetic Alfvén wave and fast magnetosonic wave for the intermediate-β plasma in magnetopause has been considered in the present study. A set of dimensionless equations has been derived taking ponderomotive nonlinearity into account due to kinetic Alfvén wave in the fast magnetosonic wave dynamics. In order to analyze the nonlinear coupling of fast magnetosonic wave and kinetic Alfvén wave and also to study its effect on the turbulent power spectrum, we have numerically solved these coupled equations using pseudo-spectralmethod of simulation. The results show the appearance of localized structures of kinetic Alfvén wave, which may be accountable for the heating and acceleration of plasma. The obtained results are consistent with the recent observations by Time History of Events and Macroscale Interactions during Substorms spacecraft in magnetopause.
机译：非线性相互作用的三维动力学阿尔芬波和快磁声波中级-β等离子体在磁层在目前的研究考虑。无量纲方程一直是派生的有质动力的非线性考虑由于动力学阿尔芬波快磁声波动力学。快磁声波耦合和动力学阿尔芬波,并研究其影响湍流功率谱,我们数值解决这些耦合方程pseudo-spectralmethod的模拟。显示的局部结构的出现动力学阿尔芬波,这可能是负责等离子体的加热和加速。结果与最近的一致观测时间事件和历史宏观尺度的相互作用,在亚暴飞船在磁层。

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