ATOMIC DATA FROM THE IRON PROJECT .19. RADIATIVE TRANSITION-PROBABILITIES FOR FORBIDDEN LINES IN FE-II

Radiative transition probabilities have been calculated for the magnet ic dipole (MI) and electric quadrupole (E2) transitions connecting the 63 metastable levels in the 3d(6)4s, 3d(7) and 3d(5)4s(2) configurati ons in Fe II. The most important configuration interaction (CI) and re lativistic effects have been taken into account in the computations ca rried out with the help of two independent computer programs, SUPERSTR UCTURE (SST) and RELATIVISTIC HARTREE-FOCK (HFR). The results obtained in the present work are compared with previous theoretical studies an d with some astrophysical observations. The new data presented here ar e probably the most reliable to date.