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Observation and theory of the barium releases from the CRRES satelliteThe relationship between releases of barium from the NASA Combined Release and Radiation Effects Satellite (CRRES) and enhanced auroral activity is discussed with reference to observational data. Barium releases were conducted at a variety of altitudes and injection velocities, and plasma irregularities are reported as a result of the interactions. Auroral activity increased within 5 min of each release, and references are made to the effects on diamagnetic cavities, bulk ion motion, and stimulated electron and ion precipitation. Artificially created structured diamagnetic cavities are noted for each release, plasma waves are generated by the high-speed ion clouds, and enhanced ionization is found in the critical ionization-velocity process. Barium releases are effective in stimulating electron precipitation, and the observed irregularities are related to cycloid bunching of the initial ion distributions.
Document ID
19920044499
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bernhardt, P. A.
(NASA Headquarters Washington, DC United States)
Huba, J. D.
(NASA Headquarters Washington, DC United States)
Scales, W. A.
(U.S. Navy, Naval Research Laboratory, Washington DC, United States)
Wescott, E. M.
(NASA Headquarters Washington, DC United States)
Stenbaek-Nielsen, H. C.
(Alaska, University Fairbanks, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Plasma Physics
Report/Patent Number
AIAA PAPER 92-0789
Accession Number
92A27123
Distribution Limits
Public
Copyright
Other

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