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Slow-mode shocks - A semipermanent feature of the distant geomagnetic tailA survey is made of the relative frequency of encounters with slow-mode shocks observed by ISEE 3 in the distant geomagnetic tail. The association of these shocks with the phase of substorm activity as evidenced by enhanced currents in the auroral ionosphere and enhanced energetic-particle populations at geostationary orbit is also documented. During the 25 days between January 18 and February 11, 1983, 26 unambiguous examples of slow shocks were observed. Although a very strong association with the level of geomagnetic activity is found, shocks were observed during all phases of substorm activity including one during quiet conditions. Slow-mode shocks must therefore be a semipermanent feature of the bounding surfaces which separate lobe and plasma sheet particle populations in the distant geomagnetic tail.
Document ID
19850036977
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Feldman, W. C.
(Los Alamos Scientific Lab. NM, United States)
Baker, D. N.
(Los Alamos Scientific Lab. NM, United States)
Bame, S. J.
(Los Alamos Scientific Lab. NM, United States)
Birn, J.
(Los Alamos Scientific Lab. NM, United States)
Gosling, J. T.
(Los Alamos Scientific Lab. NM, United States)
Hones, E. W., Jr.
(Los Alamos Scientific Lab. NM, United States)
Schwartz, S. J.
(Los Alamos National Laboratory Los Alamos, NM, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Journal of Geophysical Research
Volume: 90
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
85A19128
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-54496-A
Distribution Limits
Public
Copyright
Other

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