Accurate transition probabilities for some spectral lines of singly ionized oxygen

Abstract

Transition probabilities based on sophisticated configuration interaction wave functions have been obtained for transitions between the fine structure levels of the 26 lowest lying 2s22p3, 2s2p4, 2s22p23s, 2s22p23p, 2s22p23d states of singly ionized oxygen. The calculations were performed using the CIV3 code of Hibbert and small empirical adjustments were introduced to the diagonal Hamiltonian matrix elements in order to achieve accurate energy splittings between the levels. The present results are believed to be the most accurate available and, for several allowed transitions, a significant departure from LS coupling, due to relativistic effects, is found.