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Observed Barium Emission RatesThe barium releases from the CRRES satellite have provided an opportunity for verifying theoretically calculated barium ion and neutral emission rates. Spectra of the five Caribbean releases in the summer of 1991 were taken with a spectrograph on board a U.S. Air Force jet aircraft. Because the line of sight release densities are not known, only relative rates could be obtained. The observed relative rates agree well with the theoretically calculated rates and, together with other observations, confirm the earlier detailed theoretical emission rates. The calculated emission rates can thus with good accuracy be used with photometric observations. It has been postulated that charge exchange between neutral barium and oxygen ions represents a significant source for ionization. If so. it should be associated with emissions at 4957.15 A and 5013.00 A, but these emissions were not detected.
Document ID
19970031733
Document Type
Reprint (Version printed in journal)
Authors
Stenbaek-Nielsen, H. C. (Alaska Univ. Fairbanks, AK United States)
Wescott, E. M. (Alaska Univ. Fairbanks, AK United States)
Hallinan, T. J. (Alaska Univ. Fairbanks, AK United States)
Date Acquired
August 17, 2013
Publication Date
October 1, 1993
Publication Information
Publication: Journal of Geophysical Research
Volume: 98
Issue: A10
ISSN: 0148-0227
Subject Category
Geophysics
Report/Patent Number
Paper-93JA00660
NAS 1.26:204420
NASA-CR-204420
Funding Number(s)
CONTRACT_GRANT: NAS8-36321
Distribution Limits
Public
Copyright
Public Use Permitted.
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