Transition probabilities for forbidden lines of Fe III

Abstract

Radiative transition probabilities have been calculated for states within the 3d 6 conguration of Fe III. Magnetic dipole (M1) and electric quadrupole (E2) transition probabilities have been obtained using average energies, electrostatic and spin-orbit integrals adjusted so as to t the observed energy levels. The most important conguration interaction (CI) and relativistic eects were included explicitly in the calculations, using the relativistic Hartree-Fock (HFR) method due to Cowan. The present work represents a renement of previous monocongurational calculations of transition probabilities for forbidden lines of astrophysical interest in Fe III.