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Consequences of using nonlinear particle trajectories to compute spatial diffusion coefficientsIn a study of cosmic ray propagation in interstellar and interplanetary space, a perturbed orbit resonant scattering theory for pitch angle diffusion in a slab model of magnetostatic turbulence is slightly generalized and used to compute the diffusion coefficient for spatial propagation parallel to the mean magnetic field. This diffusion coefficient has been useful for describing the solar modulation of the galactic cosmic rays, and for explaining the diffusive phase in solar flares in which the initial anisotropy of the particle distribution decays to isotropy.
Document ID
19770044460
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Goldstein, M. L.
(NASA Goddard Space Flight Center Laboratory for Extraterrestrial Physics, Greenbelt, Md., United States)
Date Acquired
August 8, 2013
Publication Date
March 1, 1977
Publication Information
Publication: Journal of Geophysical Research
Volume: 82
Subject Category
Space Radiation
Accession Number
77A27312
Distribution Limits
Public
Copyright
Other

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