Calculated wavelengths, oscillator strengths, and energy levels for allowed 3-3 transitions for ions in the Cl-like isoelectronic sequence between Ar II and Ni XII

Abstract

These tabulations of atomic data for Cl-like ions complete a series of four sets covering 3 s 23 p n −3 s3 p n+1 and 3 s 23 p n −3 s 23 p n−1 3 d transitions in the Cl, S, P, and Si-like ions. The work firmly demonstrates the discrepancies between measured values and the most advanced ab initio computed wavelengths of complex atomic structures, the success of semiempirical optimization procedures in reducing these discrepancies, and the importance of including all strongly interacting configurations in calculating gf values. Calculated wavelengths, oscillator strengths ( gf), energy levels, and level compositions as well as measured wavelengths are listed here for ions between Ar II and Ni XII. The method employed Slater parameter optimization procedures and Hartree-Fock-Relativistic (HFR) and Multiconfiguration-Dirac-Fock computational program packages.