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Alfvén wave generated electron time dispersion
Author(s) -
Kletzing C. A.,
Hu S.
Publication year - 2001
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 - 10.1029/2000gl012179
Subject(s) - physics , electron , alfvén wave , ionosphere , magnetosphere , computational physics , dispersion (optics) , electron precipitation , geophysics , range (aeronautics) , sounding rocket , depth sounding , kinetic energy , dispersion relation , magnetic field , atomic physics , magnetohydrodynamics , classical mechanics , optics , geology , astronomy , nuclear physics , oceanography , materials science , quantum mechanics , composite material
The results from a model of kinetic Alfvén waves which includes varying magnetic field and density show that time‐dispersed bursts of auroral electrons can be accelerated by Alfvén wave pulses propagating from the magnetosphere to the ionosphere. The modeled electron signatures have similar energy range and temporal structure to those observed on sounding rockets and satellites suggesting that electron time dispersion is generated by Alfvén waves.