Radiative Charge Transfer from H Atoms to He2+Ions

Abstract

The rate coefficient for radiative charge transfer from H atoms to He2+ ions is calculated at temperatures in the range 250°K to 64000°K. It is found to be almost independent of temperature and to be very high (the mean value being about 1.6×10-13cm3sec-1). As a subsidiary part of the work, earlier computations on the exact two centre wave functions of the 1sσ and 2pσ states of HeH2+ and on the transition integral connecting these states are extended to internuclear separations up to 10 atomic units.