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

¹ Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6372, U.S.A.
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
⁴ Theoretische Chemie, Bergische Universität-Gesamthochschule Wuppertal, Gaußstr. 20, D-42097 Wuppertal, Germany

Send offprint request to: P.C. Stancil

Received: 29 June 1999
Accepted: 20 September 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.