论文标题
三维冲击湍流中的电子规模重新连接
Electron-scale reconnection in three-dimensional shock turbulence
论文作者
论文摘要
在准平行冲击的过渡区域已经观察到磁重新连接。在这项工作中，粒子中的方法用于模拟准平行冲击中的三维重新连接。冲击过渡区域是湍流的，导致形成了各种方向重新连接电流板。研究了两个具有弱和强导磁场的重新连接位点，这表明重新连接是快速和瞬态的。使用包括电子流和磁通传输在内的诊断物进行重新连接位点的特征。与二维模拟相反，实现了弱指导场重新连接。此外，这些事件中的电流表沿几乎垂直于二维模拟中的方向形成，其中重新连接几何形状受到约束。
Magnetic reconnection has been observed in the transition region of quasi-parallel shocks. In this work, the particle-in-cell method is used to simulate three-dimensional reconnection in a quasi-parallel shock. The shock transition region is turbulent, leading to the formation of reconnecting current sheets with various orientations. Two reconnection sites with weak and strong guide fields are studied, and it is shown that reconnection is fast and transient. Reconnection sites are characterized using diagnostics including electron flows and magnetic flux transport. In contrast to two-dimensional simulations, weak guide field reconnection is realized. Furthermore, the current sheets in these events form in a direction almost perpendicular to those found in two-dimensional simulations, where the reconnection geometry is constrained.
