Particle acceleration in magnetic reconnection zones

Astronomy and Astrophysics – Astronomy

Scientific paper

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Magnetohydrodynamics And Plasmas

Scientific paper

Magnetic reconnection is one of the most effective particle acceleration processes. Usually this process is described in a simplified analytical way. This implies a homogeneous electrical field, which has its origin in the 2-D-description of the reconnection mechanism. We have done numerical test particle calculations with realistic field configurations. These fields were produced in a 3-D-MHD-Simulation of the reconnection process. Additionally we have considered non thermal energy loss processes; namely synchrotron and inverse Compton losses, which drastically limit the achievable final energy of the particles. 3-D reconnection produces relativistic electron beams with Lorentz factors up to 102-104 depending on the strengths of the energy losses. .

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