Oscillator strengths and radiative rates for transitions in neutral sulfur

Abstract

We present accurate oscillator strengths and radiative rates for 2173 E1 transitions among the 120 levels belonging to 3 s 2 3 p 4 , 3 s 3 p 5 , and 3 s 2 3 p 3 ( 4 S o , 2 D o , 2 P o ) n ℓ configurations where n ℓ = 4 s, 5 s, 6 s, 4 p, 5 p, 6 p, 3 d, 4 d, 4 f, 5 f . A configuration interaction approach is employed through the standard CIV3 program. The 114 LS states included in the present calculation generate 250 fine-structure levels belonging to the above configurations below 100,000 cm −1. However, results of only 120 fine-structure levels are presented due to the absence of experimental energy values for the remaining levels. Tabulations of oscillator strengths and radiative rates, and their comparison with other calculations, are presented in the first two tables. In a separate table the oscillator strengths and transition probabilities, in length and velocity gauges, are presented for 2173 E1 transitions, and are arranged in ascending order of wavelength.