Physics
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....93..963m&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 93, Feb. 1, 1988, p. 963-977. NSF-USAF-supported research.
Physics
12
Atmospheric Composition, Auroral Zones, Electric Discharges, Nitrogen, Emission Spectra, Gas Pressure, Low Pressure, Molecular Oscillations, Radiative Lifetime
Scientific paper
A series of experiments was performed with pulsed electric discharges in low-pressure nitrogen in order to elucidate excitation processes underlying auroral photon emission. Dramatic changes were seen in the relative band intensities of the spectra subject to the influence of the variation of the experimental conditions. In particular, the distribution of population among vibrational levels of the B 3Pi(g) state evolved in time both during and after the exciting electric pulse, with the trends strongly correlated with the number of collisions. Radiation from these excited vibrational levels continued at emission rates much higher than those commensurate with their radiative lifetimes.
Benesch William
Carragher B. A.
Morrill Jeff
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