Particle Energization in 3D Magnetic Reconnection of Relativistic Pair Plasmas

摘要: We present large scale 3D particle-in-cell (PIC) simulations to examine particle energization in magnetic reconnection of relativistic electron-positron (pair) plasmas. The initial configuration is set up as a Harris equilibrium without guide field. These are enough accommodate sufficient number tearing and kink modes. Contrary the non-relativistic limit, linear instability faster than instability, at least our specific parameters. find that energy dissipation first facilitated by followed secondary instability. Particles mostly energized inside islands during stage due spatially varying electric fields produced outflows from reconnection. Secondary leads additional acceleration. Accelerated particles are, however, observed be thermalized quickly. amplitude vertical field resulting modes further help thermalizing non-thermal generated Implications these results for astrophysics briefly discussed.