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Chaotic jumps in the generalized first adiabatic invariant in current sheetsThe present study examines how the changes in the generalized first adiabatic invariant J derived from the separatrix crossing theory can be incorporated into the drift variable approach to generating distribution functions. A method is proposed for determining distribution functions for an ensemble of particles following interaction with the tail current sheet by treating the interaction as a scattering problem characterized by changes in the invariant. Generalized drift velocities are obtained for a 1D tail configuration by using the generalized first invariant. The invariant remained constant except for the discrete changes caused by chaotic scattering as the particles cross the separatrix.
Document ID
19910063746
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Brittnacher, M. J.
(California Univ. San Diego, CA, United States)
Whipple, E. C.
(California, University San Diego, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1991
Publication Information
Publication: Geophysical Research Letters
Volume: 18
ISSN: 0094-8276
Subject Category
Plasma Physics
Accession Number
91A48369
Funding Number(s)
CONTRACT_GRANT: NAGW-1150
Distribution Limits
Public
Copyright
Other

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