Fast magneticreconnection theory and application to substorms and flares

将自发快速重联模型推广到一般的三维情况，并通过MHD模拟研究了快速重联演化的物理机制。将结果应用于耀斑和亚暴，阐明了耀斑环和等离子体团的三维结构。结果表明，切变场中等离子体团的传播与卫星观测结果吻合较好，低β等离子体在初始无作用力电流片中的快速重联演化是爆发性耀斑膨胀和显著的日冕加热的原因。

The spontaneous fast reconnection model is extended to general three-dimensional situations, and the physical mechanism of fast reconnection evolution is studied by MHD simulations. The results are applied to flares and substorms, and the 3D structures of flaring loops and plasmoids are clarified. It is demonstrated that the plasmoid propagation in sheared fields is in good agreement with satellite observations; also, the fast reconnection evolution in low-beta plasmas in initially force-free current sheets is responsible for explosive flaring expansion and remarkable coronal heating.