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arXiv physics/0402035physics.plasm-ph
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等离子体中磁声小激波的非线性模型

Nonlinear model for magnetosonic shocklets in plasmas

P. K. Shukla, B. Eliasson, M. Marklund, R. Bingham

摘要:

利用非线性磁流体动力学方程,导出了均匀热磁等离子体中磁声小激波的精确非线性方程。分析以及数值解的非线性方程。得到了离子流体速度和磁场(或等离子体密度)扰动的类激波结构。结果可能有相关的快速磁声激波,最近已观察到的集群航天器在地球的弓形激波的机载仪器的理解。

英文摘要:

Exact nonlinear equations for magnetosonic shocklets in a uniform hot magnetoplasma are derived by using the nonlinear magnetohydrodynamic equations. Analytic as well as numerical solutions of the nonlinear equations are presented. Shock-like structures of the ion fluid velocity and magnetic field (or the plasma density) perturbations are obtained. The results may have relevance to the understanding of fast magnetosonic shocklets that have been recently observed by onboard instruments of the Cluster spacecraft at the Earth's bow shock.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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