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Type: Journal article
Title: Infrared auroral emissions driven by resonant electron impact excitation of NO molecules
Author: Campbell, Laurence
Brunger, Michael J.
Petrovic, Z. L.
Jelisavcic, M.
Panajotovic, R.
Buckman, Stephen J.
Citation: Geophysical Research Letters, 2004; 31(10):L10103
Publisher: American Geophysical Union
Issue Date: 2004
ISSN: 0094-8276
School/Discipline: School of Chemistry and Physics : Physics and Mathematical Physics
Statement of
L. Campbell, M. J. Brunger, Z. Lj. Petrovic, M. Jelisavcic, R. Panajotovic and S. J. Buckman
Abstract: Although only a minor constituent of the earth's upper atmosphere, nitric oxide (NO) plays a major role in infrared auroral emissions due to radiation from vibrationally excited (NO*) states. The main process leading to the production of these excited molecules was thought to be chemiluminescence, whereby excited nitrogen atoms interact with oxygen molecules to form vibrationally excited nitric oxide (NO*) and atomic oxygen. Here we show evidence that a different production mechanism for NO*, due to low energy electron impact excitation of NO molecules, is responsible for more than 30% of the NO auroral emission near 5 μm.
DOI: 10.1029/2003GL019151
Appears in Collections:Physics publications

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