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Formation, propagation, and decay of coherent pulses of solar cosmic rays
Author(s) -
Ruffolo D.,
Khumlumlert T.
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/95gl01989
Subject(s) - physics , cosmic ray , anisotropy , interplanetary spaceflight , computational physics , pulse (music) , astrophysics , scattering , solar energetic particles , solar wind , interplanetary medium , optics , plasma , nuclear physics , coronal mass ejection , detector
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.