论文标题
三维不稳定性的相互作用和磁层爆炸性发作中的磁重新连接
Interplay of Three-Dimensional Instabilities and Magnetic Reconnection in the Explosive Onset of Magnetospheric Substorms
论文作者
论文摘要
磁层的底型先于磁通量加载的缓慢生长阶段,而尾部的电流薄片变薄。广泛的数据集提供了触发稳定性发作时触发不稳定性的证据,包括磁重新连接和激烈的不稳定性。使用精确的动磁尾平衡,我们提出了粒子中的模拟,该模拟通过气球不稳定性通过破坏偶极性前面捕获质量的爆炸性。我们使用自洽的粒子跟踪来确定非热粒子加速机制。
Magnetospheric substorms are preceded by a slow growth phase of magnetic flux loading and current sheet thinning in the tail. Extensive datasets have provided evidence of the triggering of instabilities at substorm onset, including magnetic reconnection and ballooning instabilities. Using an exact kinetic magnetotail equilibrium we present particle-in-cell simulations which capture the explosive nature of substorms through a disruption of the dipolarization front by the ballooning instability. We use self-consistent particle tracking to determine the nonthermal particle acceleration mechanisms.