论文标题
侧面磁路的特征:themis观测
Characteristics of the Flank Magnetopause: THEMIS Observations
论文作者
论文摘要
陆地磁磁带是将地球磁层屏蔽的边界,从震惊的太阳风及其另一侧的嵌入式星际磁场屏蔽。在本文中,我们展示了从实体(themis)卫星期间事件和宏观相互作用的两个时间历史的观察结果,将日期磁性交叉点与终结器附近的侧面交叉点进行了比较。检查了大量磁路交叉口,检查了诸如当前板厚度,运动和电流密度之类的宏观特性。结果表明,侧面的磁磁度通常比白天的磁路厚,并且电流密度较低。与群集观测结果的早期结果一致,我们还发现持久性的黎明不对称性,黎明时在黎明时较厚,更动态的磁磁带。
The terrestrial magnetopause is the boundary that shields the Earth's magnetosphere on one side from the shocked solar wind and its embedded interplanetary magnetic field on the other side. In this paper, we show observations from two of the Time History of Events and Macroscales Interactions during Substorms (THEMIS) satellites, comparing dayside magnetopause crossings with flank crossings near the terminator. Macroscopic properties such as current sheet thickness, motion, and current density are examined for a large number of magnetopause crossings. The results show that the flank magnetopause is typically thicker than the dayside magnetopause and has a lower current density. Consistent with earlier results from Cluster observations, we also find a persistent dawn-dusk asymmetry with a thicker and more dynamic magnetopause at dawn than at dusk.