The O I /5577-A wavelength/ airglow - Observations and excitation mechanisms

Details The O I /5577-A wavelength/ airglow - Observations and excitation mechanisms The O I /5577-A wavelength/ airglow - Observations and excitation mechanisms

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.3923f&link_type=abstract

Journal of Geophysical Research, vol. 81, Aug. 1, 1976, p. 3923-3930.

Physics

8

Airglow, Atmospheric Chemistry, Midlatitude Atmosphere, Oxygen Spectra, Atmospheric Composition, Explorer 51 Satellite, Oxygen Atoms, Oxygen Recombination, Reaction Kinetics, Solar Position

Scientific paper

Analysis of the O I /5577-A wavelength/ airglow observations conducted on board the Atmosphere Explorer C satellite yields the following results when combined with simultaneous measurements of ion and neutral composition. A volume emission rate profile derived after sunset requires the production of an O(1S) atom in 8% of the O2(+) recombinations. Photoelectric impact on atomic oxygen and the dissociative recombination of O2(+) are important sources of O(1S) in the dayglow; however, the airglow measurements require a large additional production of O(1S) below 200 km in addition to these. The reaction N + O2(+) yielding NO(+) + O(1S) can provide the missing O(1S) source if the rate coefficient is near 2.5 times 10 to the minus 11th cu cm per sec.

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