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首页> 外文期刊>The Astrophysical journal >ON PARTICLE ACCELERATION AROUND SHOCKS. II. A FULLY GENERAL METHOD FOR ARBITRARY SHOCK VELOCITIES AND SCATTERING MEDIA
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ON PARTICLE ACCELERATION AROUND SHOCKS. II. A FULLY GENERAL METHOD FOR ARBITRARY SHOCK VELOCITIES AND SCATTERING MEDIA

机译：关于电击的加速。二。任意震荡速度和散射介质的通用方法

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摘要

The probability that a particle, crossing the shock along a given direction, is reflected backward along another direction was shown to be the key element in determining the spectrum of nonthermal particles accelerated via the Fermi mechanism around a plane-parallel shock in the test-particle limit. Here an explicit equation for this probability distribution is given for both the upstream and downstream sections. Although analytically intractable, this equation is solved numerically, allowing the determination of the spectrum in full generality, without limitation to shock speed or scattering properties. A number of cases are then computed, making contact with previous numerical work, in all regimes: Newtonian, transrelativistic, and fully relativistic.
机译：研究表明，沿着给定方向与激波相交的粒子沿另一个方向向后反射的可能性是确定通过费米机制加速的非热粒子在测试粒子中平行于平面平行的波谱的关键因素限制。在此，针对上游和下游部分给出了针对该概率分布的明确方程式。尽管在分析上难以解决，但该方程式在数值上得到了求解，从而可以全面确定光谱，而不受冲击速度或散射特性的限制。然后计算所有情况下的各种情况，并与以前的数值工作联系起来：牛顿，超相对论和完全相对论。

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