The OH Meinel bands in the airglow - The radiative lifetime

Details The OH Meinel bands in the airglow - The radiative lifetime The OH Meinel bands in the airglow - The radiative lifetime

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978cajph..56..581l&link_type=abstract

Canadian Journal of Physics, vol. 56, May 1978, p. 581-586.

Physics

3

Airglow, Emission Spectra, Hydroxyl Emission, Molecular Rotation, Radiative Lifetime, Molecular Excitation, Molecular Oscillations, Ozone, Spectral Bands, Vibrational Spectra

Scientific paper

It is shown that calculated rotational temperatures of the emitted spectra for the OH Meinel bands are consistent with laboratory observations of the hydrogen-ozone reaction if the radiative lifetime for the Meinel bands is short. The model used for the calculations is also used to infer the initial rotational populations of the OH vibrations levels excited in the hydrogen-ozone reaction. The initial rotational populations are described by rotational temperatures of 1940, 1230, and 760 K for the seventh, eighth, and ninth vibrational levels, respectively. The data indicate that the rate constants for vibrational quenching should be increased from previously accepted values. The relation of Meinel bands to the determination of vibration-rotation transitions of a certain OH state, and the effect of a short radiative lifetime for airglow observations are discussed.

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