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Pitch angle scattering of energetic particles by oblique whistler waves
Author(s) -
Inan U. S.,
Bell T. F.
Publication year - 1991
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 - 10.1029/90gl02476
Subject(s) - whistler , electron precipitation , pitch angle , physics , electron , scattering , oblique case , van allen radiation belt , computational physics , cyclotron , atomic physics , optics , geophysics , magnetosphere , plasma , nuclear physics , linguistics , philosophy
First order cyclotron or Landau resonant pitch angle scattering of electrons by oblique whistler waves propagating at large angles to the ambient field are found to be at least as large as that due to parallel propagating waves. Commonly observed precipitation of >40 keV electrons in association with ducted whistlers may thus be accompanied by substantial fluxes of lower energy (10 eV–40 keV) electrons precipitated by the nonducted components.