Other
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa31b1739s&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SA31B-1739
Other
[0310] Atmospheric Composition And Structure / Airglow And Aurora, [0317] Atmospheric Composition And Structure / Chemical Kinetic And Photochemical Properties, [0355] Atmospheric Composition And Structure / Thermosphere: Composition And Chemistry, [0358] Atmospheric Composition And Structure / Thermosphere: Energy Deposition
Scientific paper
Nitric oxide is produced in the terrestrial thermosphere, by reactions of nitrogen atoms with O2, in highly excited rotational and vibrational states. A portion of the vibrational energy of nascent NO is radiated away, as 5.3 and 2.7 μ fundamental (Δv = -1) and overtone (Δv = -2) band emissions, contributing to cooling of the atmosphere. Another portion of this vibrational energy is lost, via collisions with O and O2, contributing to heating of the atmosphere. While the loss of vibrational energy of NO by collisions with O has been the subject of several recent studies, the loss by collisions with O2 has received little attention. We present the results of a first principles calculation of the rate coefficients of the processes NO(v) + O2 → NO(v') +O2 as functions of temperature and vibrational level v. The results of the calculation are compared with the available experimental data where possible.
Sharma Ramesh D.
Welsh James
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