Physics
Scientific paper
May 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.3591r&link_type=abstract
Journal of Geophysical Research, vol. 87, May 1, 1982, p. 3591-3598. Research supported by the U.S. Defense Nuclear Agency.
Physics
18
Airglow, Atmospheric Chemistry, Auroral Spectroscopy, Infrared Radiation, Nitric Oxide, Chemiluminescence, Flux (Rate), Infrared Radiometers, Oxygen Atoms, Reaction Kinetics, Rocket-Borne Instruments
Scientific paper
Rocket-borne measurements of infrared auroral emission by nitric oxide are analyzed. Four rocket flights provided opportunities to measure 5.3- and 2.7-micron NO emission by means of infrared fixed band radiometers and CVF spectrometers, narrow band photometers, and incident energy spectra on various occasions. Analysis of infrared emission profiles and electron flux data indicates the NO density to be significantly enhanced with respect to midlatitude values. NO emission in the fundamental 5.3-micron band is attributed to resonance excitation by warm earth radiation, collisional excitation primarily by O atoms and chemiluminescence from the reaction of N with O2; with an energy efficiency of 0.015. The overtone band emission at 2.7 microns is accounted for by chemiluminescence produced with an energy efficiency of 0.0054. Total photon yield for the chemiluminescence reaction is estimated to range from 1.2 to 2.4 vibrational quanta per NO molecule.
Degges T. C.
Hurd A. G.
Reidy W. P.
Stair T. Jr. A.
Ulwick James C.
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