
Accession Number : AD0664092
Title : TRANSPORT OF COSMIC RAYS IN THE INTERPLANETARY MEDIUM,
Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH GEOASTRO PHYSICS LAB
Personal Author(s) : Roelof,E. C.
Report Date : OCT 1967
Pagination or Media Count : 15
Abstract : By quasilinearization of the Liouville equation for a charged particle in an electromagnetic field combined with an ensemble average over field configurations, a transport equation is derived for the ensemble average particledistribution function. The resulting integrodifferential equation is rewritten in terms of a simpler characteristic function which, when found, gives the complete solution in terms of the particle orbits in the ensemble mean fields. With the appropriate approximations, the equation reduces to the FokkerPlanck form applied recently by Jokipii to galactic cosmicray modulation, and by the author to energetic solarflare particle propagation. It is argued that the equation, although complicated, offers several advantages as a starting point for transport theory over the simpler but less appropriate FokkerPlanck and Boltzmann equations. (Author)
Descriptors : (*COSMIC RAYS, SPACE ENVIRONMENTS), TRAJECTORIES, ELECTROMAGNETIC FIELDS, CHARGED PARTICLES, SOLAR FLARES, TRANSPORT PROPERTIES, DISTRIBUTION FUNCTIONS, MATHEMATICAL ANALYSIS
Subject Categories : Astrophysics
Atmospheric Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE