Dissociative recombination of N2/+/ in the ionosphere

Details Dissociative recombination of N2/+/ in the ionosphere Dissociative recombination of N2/+/ in the ionosphere

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979georl...6..775t&link_type=abstract

Geophysical Research Letters, vol. 6, Oct. 1979, p. 775-776.

Physics

Electron-Ion Recombination, Gas Dissociation, Ionospheric Ion Density, Nitrogen Ions, Photoionization, Satellite Observation, Electron Energy, Energy Transfer, Gas Ionization, Reaction Kinetics, Scientific Satellites, Solar Activity Effects, Solar Terrestrial Interactions

Scientific paper

N2(+) ion measurements are examined which were made with the Atmospheric Explorer-C satellite during a phase of solar activity in 1978 that was significantly higher than near the earlier minimum. It is found that the major source of N2(+) is photoionization, rather than charge exchange with O(+) (2D), and that the major loss process above 300 km is dissociative recombination with electrons. A data sample for which the electron temperature (T sub e) covered the range from 1000 to 3400 K is used to evaluate the rate constant, alpha, for the dissociative-recombination process. The results show good agreement with laboratory measurements given by the expression: alpha = 1.8 x 10 to the -7th (T sub e/300) to the -0.39th cu cm/sec.

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