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Analyses of atomic oxygen, the green line, and Herzberg bands in the lower thermosphereMeasured altitude profiles of atomic oxygen, 557.7-nm emissions, and Herzberg I emission between 80 and 120 km were used to test the proposed mechanisms leading to these emissions. As generally assumed, the O2(A 3 Sigma u +) that emits the Herzberg I bands is excited by three-body recombination of atomic oxygen. The quenching of this state is by N2 or O2; for N2 the lifetime times the rate is 2.75 x 10 to the -13th per cu cm; other quenchers are insignificant. It is found that the atomic oxygen O(1S) emitting the green line is excited by the Barth mechanism.
Document ID
19810038519
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Thomas, R. J.
(Colorado, University Boulder, Colo., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Publication Information
Publication: Journal of Geophysical Research
Volume: 86
Subject Category
Geophysics
Accession Number
81A22923
Funding Number(s)
CONTRACT_GRANT: NSG-7231
Distribution Limits
Public
Copyright
Other

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