Consequences of using nonlinear particle trajectories to compute spatial diffusion coefficients

Details Consequences of using nonlinear particle trajectories to compute spatial diffusion coefficients Consequences of using nonlinear particle trajectories to compute spatial diffusion coefficients

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jgr....82.1071g&link_type=abstract

Journal of Geophysical Research, vol. 82, Mar. 1, 1977, p. 1071-1076.

Physics

5

Cosmic Rays, Diffusion Coefficient, Interplanetary Space, Interstellar Space, Particle Diffusion, Particle Trajectories, Angular Distribution, Galactic Radiation, Pitch (Inclination), Solar Flares

Scientific paper

In 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.

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