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Ion cyclotron waves observed near the plasmapausePc2 electromagnetic ion cyclotron waves at 0.1 Hz, near the oxygen cyclotron frequency, have been observed by ISEE-1 and -2 between L = 7.6 - 5.8 on an inbound near equatorial pass in the dusk sector. The waves occurred in a thick plasmapause of width about 1 earth radius and penetrated about 1 earth radius into the plasmasphere. Wave onset was accompanied by significant increases in the thermal (0-100 eV) He(+) and the warm (0.1-16 keV/e) O(+) and He(+) heavy ion populations. Wave polarization is predominantly left-handed with propagation almost parallel to the ambient magnetic field, and the spectral slot and polarization reversal predicted by multicomponent cold plasma propagation theory are identified in the wave data. The results are considered as an example of wave-particle interactions occurring during the outer plasmasphere refilling process at the time of the substorm recovery phase.
Document ID
19870047227
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Fraser, B. J.
(California, University Los Angeles; Newcastle, University, Australia)
Samson, J. C.
(Alberta, University Edmonton, Canada)
Mcpherron, R. L.
(California Univ. Los Angeles, CA, United States)
Russell, C. T.
(California, University Los Angeles, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Advances in Space Research
Volume: 6
Issue: 3 19
ISSN: 0273-1177
Subject Category
Geophysics
Accession Number
87A34501
Funding Number(s)
CONTRACT_GRANT: N00014-84-C-0158
CONTRACT_GRANT: NAS5-28448
CONTRACT_GRANT: NSF ATM-83-18200
Distribution Limits
Public
Copyright
Other

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