Theoretical Transition Probabilities in Mg IV

Calculated oscillator strengths are listed for 2 s 2 2 p 5 - 2 s 2 p 6 , 2 s 2 2 p 5 - 2 s 2 2 p 4 ns , 2 s 2 2 p 5 - 2 s 2 2 p 4 nd and for 2 s 2 2 p 4 nl - 2 s 2 2 p 4 n'l' ( l = s, p; l' = p, d; n, n' = 3, 4) transitions of Mg IV. They have been computed with the aid of a HXR computer program, initially developed by Cowan [18], including configuration interaction and some relativistic effects. Ab initio values of Slater radial energy integrals have been adjusted by a non-linear least-square optimization routine, using the available experimental energy levels.