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On the conservation of the first adiabatic invariant in perpendicular shocksThe conservation of the first adiabatic invariant of particle motion, the particle magnetic moment, at the front of perpendicular magnetosonic fast-mode shock waves is considered. Results of numerical simulations are presented which show that preshock and postshock values of the magnetic moment are on the average equal for particles transmitted by infinitesimally thin perpendicular magnetosonic fast-mode shocks, in contrast to extrapolations from adiabatic theory, which suggest that the first invariant is least likely to be conserved in this situation. The observed conservation is thus attributed to the continuity of the flux of total particle and field angular momentum across the shock front as a result of angular momentum conservation.
Document ID
19810038512
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pesses, M. E.
(Maryland, University College Park, Md., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Publication Information
Publication: Journal of Geophysical Research
Volume: 86
Subject Category
Astrophysics
Accession Number
81A22916
Funding Number(s)
CONTRACT_GRANT: NGR-21-002-224
Distribution Limits
Public
Copyright
Other

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