Physics – Plasma Physics
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20..731g&link_type=abstract
Geophysical Research Letters, Volume 20, Issue 8, p. 731-734
Physics
Plasma Physics
2
Planetology: Comets And Small Bodies: Radiation And Spectra, Space Plasma Physics: Radiation Processes, Space Plasma Physics: Spacecraft Sheaths, Wakes, Charging
Scientific paper
Surface-mediated O+NO recombination, a key reaction in spacecraft glow, has been investigated in the laboratory and the result used to provide a re-evaluation of Atmosphere Explorer glow. A value for the rate coefficient is determined. The luminescence of the desorbed NO2*, lifetime 134+/-27 μs, is first order in both O and NO flux and is independent of O-atom translational energy in the range 0.2-0.9 eV. Using this data and three identified processes contributing to NO formation in orbit, our remodelling removes earlier ambiguity in the interpretation of Explorer glow and provides the first reported correlation of orbital glow data in respect of altitude, ram angle dependence and absolute photon flux. We hypothesize that a single, common, reaction is predominantly responsible for laboratory, spacecraft, and shuttle luminescence.
Greer A. D. W.
Pratt N. H.
Stark P. W. J.
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