Review of the reaction of O(+) with H2O and its bearing on composition measurements from the Space Shuttle

Details Review of the reaction of O(+) with H2O and its bearing on composition measurements from the Space Shuttle Review of the reaction of O(+) with H2O and its bearing on composition measurements from the Space Shuttle

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16..139h&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, Feb. 1989, p. 139-141.

Physics

14

Atmospheric Chemistry, Atmospheric Composition, Oxygen Ions, Reaction Kinetics, Water, Atmospheric Models, Dimers, Ground State, Space Shuttles

Scientific paper

The rate of reaction of ground state O(+) with H2O has been measured in the energy range, 0.03-11 eV. The measurements show that the rate coefficient does not decrease drastically with increasing energy, contrary to previous work. The rate constant measured here is then applied to a simple model, which includes reactions of O(+) with water dimers, to calculate water concentration in the vicinity of the Space Shuttle. The results suggest that the pressure of water vapor may be lower than previously thought, with an upper limit of 1 x 10 to the 9th molecules/cu cm.

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