RADIATIVE CHARGE TRANSFER BETWEEN H AND $C^{++}, C^{+++}$ AND $N^{++}$

This research was supported, in part, by the Energy Research and Development Administration under Contract EY-76-S-02-2887.Author Institution: Center for Astrophysics, Harvard College Observatory, and Smithsonian Astrophysical ObservatoryRadiative charge transfer with atomic hydrogen is described by: $$X^{+n} + H {\rightarrow} X^{+(n - 1)} + H^{+} + h _{\nu}.$$ In the present study, $n = {2, 3}$ for $X = $C, and $n = 2$ for $X = $N. Ab initioh calculations of the rate coefficients will be described. All molecular valence states in the exit channel which have a dipole allowed transition from the states of the entrance channel have been considered. The rate coefficients increase slowly with increasing temperature and attain values between $2\times 10^{-14}$ and $6\times 10^{-14}$ $cm^{3}$ $sec^{-1}$ at $10^{4}$ K