CHARGE-TRANSFER IN SLOW N2++H COLLISIONS

We have performed quantal calculations of charge transfer in N2+ + H c ollisions in the range of centre of mass energies 0.1 < E < 100 eV amu (-1). Molecular states were calculated using ab initio SCF-CI methods. Radial and angular couplings between the adiabatic molecular states w ere evaluated with allowance for a common translation factor. In agree ment with earlier calculations, we find that charge transfer into the N+(2s2p(3) D-3(o)) state is dominant in the energy range considered an d relevant to the study of photoionized nebulae. However, the cross se ctions and the rate coefficients that we have computed are smaller tha n the results of the earlier work by factors of about 1.5.