Oscillator strengths and transition probabilities for Mg-like ions

Oscillator strengths and transition probabilities for transitions among the fine-structure levels in Mg-like P IV, S V, Cl VI, and Ar VII are calculated within the weakest bound electronic potential model theory. Our results are discussed and compared with the calculations and experimental values. Oscillator strengths for 3 s 3 d 3 D J – 3 s 4 f 3 F J ′ 0 and 3 s 4 d 3 D J – 3 s 4 f 3 F J ′ 0 transitions, for which very few results exist, are also computed.