update OI, CI excitation by H0
Abrahamsson, Krems, Dalgarno, 2007, ApJ, 654, 1171
FINE-STRUCTURE EXCITATION OF O i AND C i BY IMPACT WITH ATOMIC HYDROGEN E. Abrahamsson and R. V. Krems Department of Chemistry, University of British Columbia, Vancouver, BC, Canada; rkrems@chem.ubc.ca and A. Dalgarno ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA Received 2006 July 6; accepted 2006 September 20 ABSTRACT Using accurate interaction potentials, we perform refined calculations of rate coefficients for the fine-structure excitations in collisions of O( 3P) andC(3P) with atomic hydrogen. The results are presented in the form of analytical functions approximating the rate coefficients over a wide range of temperatures. We examine the sensitivity of the collision dynamics to variations of the interaction potentials and the couplings to electronically excited states.