论文标题
动力学alfvén湍流中仅电子重新连接
Electron-only reconnection in kinetic Alfvén turbulence
论文作者
论文摘要
我们研究动力学，低频，准2D湍流（称为动力学 - alfvén湍流）中的小规模重新连接事件。使用2D粒子中的模拟，我们证明了这种湍流会产生重新连接结构，其中电子动力学不偶对离子，与最近在地球磁石中检测到的仅电子重新连接事件相似。 （2018）。因此，仅电子重新连接是动力学 - α湍流的固有特性，其中电子电流表的各向异性有限，因此它们的尺寸小于离子惯性尺度。发现此类仅电子事件的重新连接率接近$ 0.1 $。
We study numerically small-scale reconnection events in kinetic, low-frequency, quasi-2D turbulence (termed kinetic-Alfvén turbulence). Using 2D particle-in-cell simulations, we demonstrate that such turbulence generates reconnection structures where the electron dynamics do not couple to the ions, similarly to the electron-only reconnection events recently detected in the Earth's magnetosheath by Phan et al. (2018). Electron-only reconnection is thus an inherent property of kinetic-Alfvén turbulence, where the electron current sheets have limited anisotropy and, as a result, their sizes are smaller than the ion inertial scale. The reconnection rate of such electron-only events is found to be close to $0.1$.
