论文标题
磁重新连接期间电子功率法的湍流能量
Turbulent energization of electron power law tails during magnetic reconnection
论文作者
论文摘要
Earth's Magnetail是研究重新连接和湍流在确定电子能量中的相互作用的绝佳实验室。在动荡重新连接期间形成力量法的过程是一个有记录的事实，仍然需要全面的解释。我们在细胞3D模拟中进行了大规模平行的粒子，并使用粒子速度的高能量范围的增强统计分辨率研究重新连接如何创造形成尾巴的条件。该过程不是连贯的层流，重新连接生成的电场的直接加速。相反，重新连接会导致湍流流出，其中能量交换由高度非高斯波动分布主导。电子能量在整个重新连接流出中散射，但是通过加强磁场的区域（例如旋转二极化的前部）向地球行驶。
Earth's magnetotail is an excellent laboratory to study the interplay of reconnection and turbulence in determining electron energization. The process of formation of a power law tail during turbulent reconnection is a documented fact still in need of a comprehensive explanation. We conduct a massively parallel particle in cell 3D simulation and use enhanced statistical resolution of the high energy range of the particle velocities to study how reconnection creates the conditions for the tail to be formed. The process is not direct acceleration by the coherent, laminar, reconnection-generated electric field. Rather, reconnection causes turbulent outflows where energy exchange is dominated by a highly non-gaussian distribution of fluctuations. Electron energization is diffuse throughout the entire reconnection outflow but it is heightened by regions of intensified magnetic field such as dipolarization fronts traveling towards Earth.
