The dissociative recombination of O2+ in the ionosphere |
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Authors: | Marsha R Torr DG Torr |
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Institution: | Center for Atmospheric and Space Sciences, UMC 34, Department of Physics, Utah State University, Logan, UT 84322, U.S.A. |
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Abstract: | Aeronomical determinations of the dissociative recombination reaction rate coefficient for O2+, α, depend directly on a knowledge of the rate coefficient for the charge exchange of O+ with O2, k. A re-evaluation of the aeronomical determination of α using Atmosphere Explorer satellite data is necessary in the light of a subsequent laboratory measurement of k. The results reported here are in reasonable agreement with laboratory determinations to within the uncertainty of the analysis for night-time conditions. However, for data obtained under sunlit conditions the aeronomical determination differs significantly from the laboratory measurements. The results imply that the state of the O2+ molecule resulting from the major thermospheric processes requires further examination. |
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