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Magnetic turbulence in space plasmas: in and around the Earth's magnetosphere

机译：太空等离子体中的磁湍流：地球磁层及其周围

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摘要

In collisionless space plasmas most phenomena are governed by wave particle interaction and by the interaction with the large scale fields. Low frequency magnetic turbulence in the solar wind is relatively well characterized and understood. The situation is more complicated for magnetic turbulence in and around the Earth's magnetosphere, where the turbulence feature can vary widely with the location. Recent spacecraft observations of magnetic turbulence in the magnetosheath, in the polar cusp regions and in the magnetotail are considered. Turbulence features like the fluctuation level, the spectral power law index, the turbulence drivers and the turbulence anisotropy and intermittency are addressed. The influence of such a turbulence on the plasma transport and dynamics is briefly described, also using the results of numerical simulations.
机译：在无碰撞空间等离子体中，大多数现象是由波粒相互作用以及与大尺度场的相互作用所决定的。太阳风中的低频磁湍流已被很好地表征和理解。地球磁层及其周围的磁湍流的情况更为复杂，其中湍流特征会随位置而变化很大。考虑了航天器在磁荒，极尖区和磁尾中的磁湍流的最新观测。讨论了湍流特征，如涨落水平，谱功率定律指数，湍流驱动因素以及湍流各向异性和间歇性。还使用数值模拟的结果简要描述了这种湍流对等离子体传输和动力学的影响。

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