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Astron. Astrophys. Suppl. Ser. 140, 225-234

Charge transfer in collisions of O⁺ with H and H⁺ with O

P.C.Stancil^1,2, D.R.Schultz¹, M.Kimura³, J.-P.Gu⁴, G.Hirsch⁴ and R.J.Buenker⁴

Send offprint request: P.C. Stancil

1 - Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6372, U.S.A.
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2 - Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996-1200, U.S.A.
3 - Graduate School of Science and Engineering, Yamaguchi University, Ube, Yamaguchi 755, Japan
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4 - Theoretische Chemie, Bergische Universität-Gesamthochschule Wuppertal, Gaußstr. 20, D-42097 Wuppertal, Germany
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Received June 29; accepted September 20, 1999

Abstract:

Cross sections and rate coefficients for total and fine-structure resolved charge transfer in collisions of O⁺ with H and H⁺ with O are presented for collision energies between 0.1 meV/u and 10 MeV/u and temperatures between 10 and 10⁷ K. The results are obtained utilizing new quantal and semiclassical molecular-orbital close-coupling, classical trajectory Monte Carlo, and continuum distorted wave calculations in conjunction with previous experimental and theoretical data. Applications to various astrophysical and atmospheric environments are discussed.

Key words: atomic processes -- ISM: atoms -- interplanetary medium -- comets: general -- planets and satellites: individual: Jupiter