Modeling of the O I 989- angstrom to 1173- angstrom ratio in the terrestrial dayglow

Journal Article · Sun Nov 01 04:00:00 EST 1987 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/JA092iA11p12445· OSTI ID:5976286

Gladstone, G R ^[1]; Link, R; Chakrabarti, S ^[2]; McConnell, J C ^[3]

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1. Univ. of Colorado, Boulder (United States)
2. Univ. of California, Berkeley (United States)
3. York Univ., North York, Ontario (Canada)

The O I 989-{angstrom} and 1173-{angstrom} intensities in the mid-latitude dayglow are modeled for the conditions of a January 17, 1985, rocket flight. It is found that the branching ratio required to fit the 1173-{angstrom} data is in agreement with the laboratory measurement of 1.3-1.5 {times} 10{sup {minus}4}. The results also suggest that the electron impact excitation cross section for the 3s{prime} {sup 3}D{degree} state in current use may be too large by a factor of {approximately}2-3, in agreement with the most recent laboratory results. If this is indeed the case, then the 1173-{angstrom} triplet is by far the most important branch for the 989-{angstrom} multiplet.

• OSTI ID: 5976286
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 92:A11; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIRGLOW
ATOM COLLISIONS
BRANCHING RATIO
CHARGED PARTICLES
COLLISIONS
COMPARATIVE EVALUATIONS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
EVALUATION
EXCITATION
IONS
LABORATORIES
MATHEMATICAL MODELS
NONMETALS
OXYGEN
OXYGEN IONS
ROCKETS
SPECTRA