Metastable N/2P/ atoms in the aurora

Details Metastable N/2P/ atoms in the aurora Metastable N/2P/ atoms in the aurora

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.1757g&link_type=abstract

Journal of Geophysical Research, vol. 85, Apr. 1, 1980, p. 1757-1761. Research supported by the Belgian Foundation for Scientif

Physics

2

Auroral Spectroscopy, Metastable Atoms, Nitrogen Atoms, Ultraviolet Spectroscopy, Atmospheric Chemistry, Atmospheric Models, Oxygen Atoms, Spectral Bands

Scientific paper

Auroral spectra have been obtained in the 3380- to 3560-A region to study the forbidden N I 4S-2P doublet at 3466 A. The forbidden N I 3466 A/N2 Vegard-Kaplan ratio is found to remain constant. This is in agreement with the results of a model calculation showing that the dominant source of N(2P) atoms is dissociative excitation of N2 by fast electrons, and the major quenching agent is atomic oxygen. A value of about 5 x 10 to the 9th/cu cm sec is deduced for the ratio of the N(2P) quantum yield to the atomic oxygen deactivation coefficient.

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