Formation, Propagation, and Decay of Coherent Pulses of Solar Cosmic Rays
Abstract
We have performed numerical simulations of the interplanetary transport of solar cosmic rays. The particles form a coherent pulse within 0.01 AU after their injection. The gradual decrease of a pulse's speed and anisotropy can be understood in terms of an equilibrium between pitch-angle scattering and focusing. The results should be useful for estimating times of particle injection.
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