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Diffusion Processes Influenced by Conjugate‐Point Wave Phenomena
Author(s) -
Cornwall John M.
Publication year - 1968
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds196837740
Subject(s) - diffusion , physics , magnetosphere , flux (metallurgy) , diffusion equation , mechanics , nonlinear system , computational physics , mathematical analysis , magnetic field , mathematics , materials science , thermodynamics , economy , quantum mechanics , economics , metallurgy , service (business)
Radial diffusion coefficients for low‐energy protons in the magnetosphere are estimated for processes involving Pc 1, 2, and 3 hydromagnetic waves. These diffusion coefficients are compared to rough estimates of diffusion due to magnetic impulses and bays, to arrive at an overall diffusion rate. An effective loss rate for ptich‐angle diffusion (caused by Pc 1) is developed, and combined with radial diffusion to yield a nonlinear differential equation. Some estimates of expected proton flux levels are made on the basis of this equation.