Studies of Plasma Sheet Formation, Ion Beam Formation, Particle Energization, and Entry into the Geomagnetic Tail

这笔拨款的重点是分析ISEE-1和-2 MEPI高能粒子和LEPEDEA等离子体数据，以及加州大学洛杉矶分校磁力计数据，以表征整个等离子体片及其邻近区域的粒子能谱，并深入了解等离子体和能量进入和离开磁尾的过程。该项目将集中于将光谱分析扩展到邻近区域，即低纬度边界层、生命和地幔。它还将研究地磁活动期间尾电流片中的等离子体通电机制，离子和电子束的形成以及等离子体片和等离子体片边界层中的能量传输，以及当交叉尾电流中断时尾场坍缩到偶极态。

THis grant is focused on analyzing ISEE-1 and -2 MEPI energetic particle and LEPEDEA plasma data, along with UCLA magnetometer data, to characterize the particle energy spectrum throughout the plasma sheet and its adjoining regions, and to gain insight into the processes by which plasma and energy enter and leave the magnetotail. This program will concentrate on extending the spectral analysis into the adjacent regions, i.e. the low-latitude boundary layer, life, and mantle. It will also be examining plasma energization mechanisms in the tail current sheet during geomagnetic activity, the formation of ion and electron beams and energy transport in the plasma sheet and plasma sheet boundary layer, and the collapse of the tail field to a dipolar configuration when the cross-tail current disrupts.