Particle Acceleration in Cosmic Plasmas: Relativistic Surfing Acceleration

The production of energetic particles is explored for collisionless shocks and magnetic reconnection by using full particle simulations and analytic study, and it is argued that “surfing acceleration ” can provide the quick and strong energiztion than that believed before. Large amplitude and small scale electrostatic field, which is a necessary condition for the strong surfing acceleration, can be easily generated in cosmic plasmas. Therefore, non-adiabatic particles trapped by the potential well of the large amplitude wave are capable of reaching relativistic energies. 1