Electron acceleration during guide field magnetic reconnection

摘要: Particle-in-cell simulations of the guide field intermittent magnetic reconnection are performed to study electron acceleration and pitch angle distributions. During growing stage reconnection, power-law distribution function for high-energy electrons distributions low-energy obtained compare favorably with observations by Wind spacecraft. Direct evidence is found secondary during later stage. A correlation between generation energetic induced electric found. Energetic accelerated first around X line, then in region outside diffusion region, when has a bipolar structure. The physical mechanisms these accelerations discussed. in-plane electrostatic that traps causes anisotropic been observed.