Atomic transitions for the doubly ionized argon spectrum, Ar III

We present new experimental atomic transition values for the atomic emission spectrum of doubly ionized argon, Ar III. In this work we studied 3s2 3p4 - 3s2 3p3 3d, 3s2 3p4 - 3s2 3p3 4s, 3s2 3p4 - 3s2 3p3 4d, 3s2 3p4 - 3s2 3p3 5s, 3s2 3p3 4p, and 3s2 3p3 4p transition arrays and 196 lines were identified as new atomic transitions between levels of these configurations. The experimental data were obtained from a capillary-discharge tube. The identifications are supported by multiconfiguration Hartree-Fock relativistic calculations.