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- Title
Vibrational populations of near-ultraviolet O<sub>2</sub> band systems in the night airglow<sup>1</sup>.
- Authors
Gattinger, R.L.; McDade, I.C.; Broadfoot, A.L.; Evans, W.F.J.; Stegman, J.; Llewellyn, E.J.
- Abstract
Observations of the limb night airglow spectrum from 250 to 475 nm, emitted from the upper mesosphere and lower thermosphere, are compared with model spectra. Data from the Arizona GLO-1 imaging spectrograph and the OSIRIS spectrograph are combined to form the observed mean airglow spectrum; a tabulated version of this spectrum is included. Model spectra of the individual O2 Herzberg I, II, and III, Chamberlain, and Slanger band systems are combined to simulate the observed mean spectrum. Franck-Condon relative band intensities are used to form a series of basis functions for the upper vibrational levels in each band system. These functions are fitted to the observed airglow spectrum with a least-squares method, the relative vibrational populations are derived and discussed.
- Subjects
AIRGLOW; SPECTROGRAPHS; FRANCK-Condon principle; HUNTEN, Donald; OSIRIS (Electronic computer system); ELECTRONIC excitation
- Publication
Canadian Journal of Physics, 2012, Vol 90, Issue 8, p741
- ISSN
0008-4204
- Publication type
Article
- DOI
10.1139/p2012-010