On the Magnetic Field Configuration of the Magnetosheath
On the Magnetic Field Configuration of the Magnetosheath
复制标题
磁鞘的磁场结构研究
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
S. Petrinec
中科院分区：
文献类型：
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作者：
S. Petrinec
磁鞘是受到冲击的太阳风直接与磁层相互作用的区域。在这里，我们使用跨度 9.5 年的观测数据集（Geotail 和 Wind）检查整个赤道磁鞘的磁场作为太阳风 IMF 方向的函数。一般来说，磁鞘磁场的天气图与弓激波的兰金-于贡尼奥条件的预测以及全局数值模型一致。还与最近的分析磁鞘磁场模型进行了定性比较，结果表明，此类模型中使用的两个边界（弓形激波和磁层顶）之间的磁鞘磁场压缩大于观察到的压缩。
The magnetosheath is the region where the shocked solar wind interacts directly with the magnetosphere. Here we examine the magnetic field throughout the equatorial magnetosheath as a function of the solar wind IMF direction using observational data sets (Geotail and Wind) spanning 9.5 years. In general, the synoptic maps of the magnetosheath magnetic field are in agreement with the predictions of Rankine-Hugoniot conditions at the bow shock and with global numerical models. Qualitative comparisons with recent analytic magnetosheath magnetic field models are also performed and show that the compression of the magnetosheath magnetic field between the two boundaries (bow shock and magnetopause) used in such models is greater than that which is observed.