Euler Potentials for the Earth Magnetic Field With Field‐Aligned Currents
Euler Potentials for the Earth Magnetic Field With Field‐Aligned Currents
复制标题
具有场对准电流的地球磁场的欧拉势
DOI：
10.1029/2020ja028153
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
M. Vandas
中科院分区：
文献类型：
--
作者：
E. Romashets;M. Vandas
本文给出了地球偶极磁场中场向电流的欧拉势，推广了以前对平行于均匀磁场的平面电流系统的结果。在该建模中使用了对应于由低空航天器测量的磁场的观察到的增加的真实的电流系统。带电粒子轨迹的参数，如长度和周期，确定为典型的和强烈的干扰条件。计算粒子分布函数。
Euler potentials of the Earth's dipole magnetic field with field‐aligned currents are found. The results generalize ones obtained earlier for systems of plane currents parallel to an ambient uniform magnetic field. A real current system corresponding to an observed increase of the magnetic field measured by a low‐altitude spacecraft is used in this modeling. Parameters of charged particle trajectories, such as length and period, are determined for typical and strongly disturbed conditions. A particle distribution function is calculated.