Ab initio calculations of oscillator strengths and Lande factors for NdIII

Theoretical calculations of oscillator strengths and Lande g-factors made w ith the Cowan code are presented for the rare-earth ion Nd III. The emphasi s is on transitions in the optical region of the spectrum. Comparisons of p revious ab initio calculations of this type for other lanthanides (e.g., La II, Ce III, and Lu II) with published experimental and theoretical data su ggest that the accuracy of the log(gf) values for individual transitions sh ould be about +/-0.15 dex in the absence of significant core polarization e ffects; the g-factors should be good to better than 5%, except in a few cas es where term mixing is important. Applications of the data are made in the calculation of neodymium abundances in the atmospheres of the chemically p eculiar stars HD 101065 ("Przybylski's star") and HD 122970.