Abstract
view Abstract Citations (30) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Oxygen Red Lines in the Airglow. II. Collisional Deactivation Effects. Seaton, M. J. Abstract Deactivation rates for upper-atmosphere metastable atomic oxygen may be deduced from (1) time variations in auroral emissions; (2) emission heights much greater than 100 km for the nightglow red lines, despite the fact that excitation must occur at 100 km; (3) observations of the [0 1] red-to-green intensity ratio in aurorae. The auroral observations may be explained in two ways: (1) assuming deactivation rates proportional to air density and a red-to-green excitation ratio 32/S3 varying with altitude, as would be expected if discharge mechanisms are operative, or (2) assuming 52 /53 independent of altitude and deactivation rates not proportional to gas density, which may be the case if resonance collisions O(1D) + O3( ) O(3P) + O (' , `3 = 2) are important. In both cases the deduced deactivation rates are consistent with suppression of the airglow red-line emission at 100 km. Publication: The Astrophysical Journal Pub Date: January 1958 DOI: 10.1086/146439 Bibcode: 1958ApJ...127...67S full text sources ADS | Related Materials (2) Part 1: 1958ApJ...127...54C Part 3: 1958ApJ...128..718B
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