Multiconfiguration Dirac-Hartree-Fock energies and transition probabilities for 2p4(P3)3d-2p4(P3)4f transitions in Ne II

Multiconfiguration Dirac-Hartree-Fock energies, lifetimes, and transition probabilities for transitions between 2p4(P3)3d and 2p4(P3)4f levels of Ne II are reported from calculations that included the effect of core-polarization. Transition energies are in excellent agreement with observed values. For many transitions the length and velocity gauge results agree within a fraction of a percent. Transition probabilities are compared with experimental values and the Coulomb approximation.