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Problems with the N 2 + + O → NO + + N reaction in aurora
Author(s) -
Swider William,
Narcisi Rocco S.
Publication year - 1981
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl008i012p01239
Subject(s) - excited state , ion , physics , atomic physics , atmospheric temperature range , analytical chemistry (journal) , chemistry , thermodynamics , chromatography , quantum mechanics
An effective rate coefficient for N 2 + + O → NO + + N which increases with altitude is deduced from an analysis of the auroral ion composition measured between 120 and 200 km over Poker Flat, Alaska on March 6, 1981. This result may be interpreted in terms of a rate coefficient with a positive temperature dependence, roughly k 3 ≃ 1.5 × 10 −10 (T i /300) 0.6 cm³ s −1 over a 300‐1600°K temperature range. Other interpretations are discussed, including the possibility that the N 2 + ions are vibrationally excited.
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