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Simulation of the dawn-dusk magnetosheath asymmetry under quasi-steady states

机译：准稳态下黎明-黄昏磁能谱不对称性的模拟

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摘要

The dawn-dusk asymmetry of the magnetosheath under quasi-steady states has been studied by using a newly developed 3D MHD magnetosphere simulation model. The results show that the dawn-dusk asymmetry is substantial because of the Parker spiral IMF. It is found that the dawn-dusk magnetosheath thickness asymmetry is the effect of different shock conditions. The plasma density and flex asymmetry are mainly caused by the different thickness of the dawn-dusk magnetosheath, and the magnetic reconnection on the magnetopause has no significant effects. It is also showed that the Plasma Depletion Layer in front of the dayside magnetopause can cause duskward plasma flow, and the total plasma flux on the dusk side will be higher.
机译：通过使用新开发的3D MHD磁层模拟模型，研究了准稳态下磁荒的黎明-黄昏不对称性。结果表明，由于有Parker螺旋IMF，黎明-黄昏不对称性很明显。结果表明，黎明黄昏的磁石厚度不对称性是不同冲击条件的影响。等离子体密度和挠曲不对称性主要是由黎明至黄昏的磁石棉厚度不同引起的，并且对磁更年期的磁重联没有明显影响。还表明，日间磁更年期前的血浆耗尽层可引起黄昏的血浆流，黄昏一侧的总血浆通量会更高。

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