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Test particle simulation study of whistler wave packets observed near Comet Giacobini-ZinnerNonlinear interactions of water group ions with large-amplitude whistler wave packets detected at the leading edge of steepened magnetosonic waves observed near Comet Giacobini-Zinner (GZ) are studied using test particle simulations of water-ion interactions with a model wave based on GZ data. Some of the water ions are found to be decelerated in the steepened portion of the magnetosonic wave to the resonance velocity with the whistler wave packets. Through resonance and related nonlinear interaction with the large-amplitude whistler waves, the water ions become trapped by the packet. An energy balance calculation demonstrates that the trapped ions lose their kinetic energy during the trapped motion in the packet. Thus, the nonlinear trapping motion in the wave structure leads to effective energy transfer from the water group ions to the whistler wave packets in the leading edge of the steepened MHD waves.
Document ID
19890039261
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kaya, N.
(Kobe University Japan)
Matsumoto, H.
(Kyoto University Uji, Japan)
Tsurutani, B. T.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; Kyoto University Japan)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Geophysical Research Letters
Volume: 16
ISSN: 0094-8276
Subject Category
Astrophysics
Accession Number
89A26632
Distribution Limits
Public
Copyright
Other

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