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Particle Acceleration Scalings Based on Exact Analytic Models for Magnetic Reconnection

机译:基于精确解析模型的磁重联粒子加速标度

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Observations suggest that particle acceleration in solar flares occurs in the magnetic reconnection region above the flare loops. Theoretical models for particle acceleration by the reconnection electric field, however, employ heuristic configurations for electric and magnetic fields in model current sheets, which are not solutions to the MHD reconnection problem. In the present study, particle acceleration is discussed within the context of a self-consistent MHD reconnection solution. This has the advantage of allowing poorly constrained local parameters in the current sheet region to be expressed in terms of the boundary conditions and electric resistivity of the global solution. The resulting acceleration model leads to energy gains that are consistent with those for high-energy particles in solar flares. The overall self-consistency of the approach is discussed.
机译:观测表明,太阳耀斑中的粒子加速发生在耀斑环上方的磁重连区域。但是,通过重新连接电场进行粒子加速的理论模型对模型电流表中的电场和磁场采用了启发式配置,这并不是MHD重新连接问题的解决方案。在本研究中,在自洽MHD重新连接解决方​​案的上下文中讨论了粒子加速。这样做的优点是,可以根据边界条件和整体解的电阻率来表示当前工作表区域中约束较弱的局部参数。所得的加速度模型导致的能量获取与太阳耀斑中高能粒子的能量获取一致。讨论了该方法的整体自洽性。

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