Ab initio calculations of oscillator strengths and Landé factors for Nd Iii

Details Ab initio calculations of oscillator strengths and Landé factors for Nd Iii Ab initio calculations of oscillator strengths and Landé factors for Nd Iii

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26as..144..517b&link_type=abstract

Astronomy and Astrophysics Supplement, v.144, p.517-522

Astronomy and Astrophysics

Astrophysics

19

Atomic Data, Line: Formation, Stars: Chemically Peculiar, Stars: Abundances

Scientific paper

Theoretical calculations of oscillator strengths and Landé g-factors made with the Cowan code are presented for the rare-earth ion Nd Iii. The emphasis is on transitions in the optical region of the spectrum. Comparisons of previous ab initio calculations of this type for other lanthanides (e.g., La Ii, Ce Iii, and Lu Ii) with published experimental and theoretical data suggest that the accuracy of the log(gf) values for individual transitions should be about +/-0.15 dex in the absence of significant core polarization effects; the g-factors should be good to better than 5%, except in a few cases where term mixing is important. Applications of the data are made in the calculation of neodymium abundances in the atmospheres of the chemically peculiar stars HD 101065 (``Przybylski's star") and HD 122970.

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