Two-valence-electron model-potential studies of the Be I isoelectronic sequence

Abstract

Calculations of the radiative properties of the Be I isoelectronic sequence, through Ne VII, have been carried out using a semi-empirical model-potential method. Bound-bound oscillator strengths among the lowest few states of the 1S, 3S, 1P0, 1P, 3P0, 3P, 1D and 3D symmetries are tabulated. Where accurate theoretical or experimental data are available, the agreement is excellent. Results are given for the 1S0-3P10 intercombination oscillator strengths for fine-structure splittings in the term 2s2p 3P0 and 2p2 3P, and for the dipole polarisability of the ground-state ions.