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https://hdl.handle.net/2440/54958
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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 Responsibility: | 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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