论文标题
Maven观测值的亚极MPB电流层的磁结构：对霍尔电力的影响
The magnetic structure of the subsolar MPB current layer from MAVEN observations: Implications for the Hall electric force
论文作者
论文摘要
我们报告了火星大气层测量的磁场的最小方差分析，报告了火星磁性堆积边界（MPB）的局部结构，用于六轨道。特别是，我们检测到MPB内定义明确的电流层，并提供了其当前密度的局部估计，从而导致阳光大厅的电力。这种力解释了太阳能离子的挠度和将行星际磁场通过MPB运送到磁性堆积区域的电子的加速度。我们发现，MPB电流层的厚度是上游（磁石）太阳风质子惯性长度和对流的Gyroradius的顺序。这项研究提供了近期围绕火星围绕当前系统的组件之一的高分辨率视图。
We report on the local structure of the Martian subsolar Magnetic Pileup Boundary (MPB) from minimum variance analysis of the magnetic field measured by the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft for six orbits. In particular, we detect a well defined current layer within the MPB and provide a local estimate of its current density which results in a sunward Hall electric force. This force accounts for the deflection of the solar wind ions and the acceleration of electrons which carry the interplanetary magnetic field through the MPB into the Magnetic Pileup Region. We find that the thickness of the MPB current layer is of the order of both the upstream (magnetosheath) solar wind proton inertial length and convective gyroradius. This study provides a high resolution view of one of the components of the current system around Mars reported in recent works.
