Extension of the analysis of the three lowest configurations in the third spectrum of cobalt (Co III)

The emission spectrum of cobalt has been observed in the wavelength region 450-3100 A using a hollow cathode as well as a sliding spark lightsource. In this region 680 lines belonging to transitions from the 3d64p configuration to the 3d7 configuration and 630 lines belonging to transitions from 3d64p to 3d64s are now classified. All 19 levels of the 3d7 configuration have been established while in 3d64s and 3d64p 59(64) and 178(180) levels have been determined respectively. The numbers in parentheses give the total number of theoretically possible levels in the two configurations. Parametric fits to the levels of the three configurations as well as eigenvector compositions of the levels are presented. The parameter values are compared to Hartree-Fock predictions. (orig.)