Physics – Space Physics
Scientific paper
Feb 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jgra..108.1089s&link_type=abstract
Journal of Geophysical Research (Space Physics), Volume 108, Issue A2, pp. SIA 15-1, CiteID 1089, DOI 10.1029/2002JA009677
Physics
Space Physics
8
Atmospheric Composition And Structure: Airglow And Aurora, Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Planetary Atmospheres (5405, 5407, 5409, 5704, 5705, 5707)
Scientific paper
A new O2 band system, the c1∑u--b1∑g+ transition, has been found in sky spectra of the terrestrial nightglow from the Keck telescopes. The spectral region is 380-550 nm, and emission occurs from highly vibrationally excited levels, exhibiting peak intensities at v = 9 and v = 10 of the c1∑u- state. The spectral lines are relatively sparse, and because of the nature of the transition, they extend to quite high rotational levels in a single Q branch. Population is observed from v = 4 to v = 11 of the c1∑u- state, and the estimated intensity of the entire system is 30 R. A comparison is made between the detectability of the new system and the c1∑u--X3∑g+ Herzberg II bands of O2, taking into consideration that the latter are the dominant visible emission in the nightglow of Venus, though only from v' = 0.
Cosby Philip C.
Huestis David L.
Slanger Tom G.
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