Extended analysis of the Eu III spectrum

Details Extended analysis of the Eu III spectrum Extended analysis of the Eu III spectrum

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008a%26a...483..339w&link_type=abstract

Astronomy and Astrophysics, Volume 483, Issue 1, 2008, pp.339-359

Astronomy and Astrophysics

Astrophysics

8

Atomic Data, Stars: Atmospheres, Stars: Chemically Peculiar, Stars: Variables: General

Scientific paper

Aims: We create an Eu iii new atomic data set for interpreting the spectra of chemically peculiar stars by an extended analysis of the doubly-ionized europium. Methods: We classified Eu iii spectral lines from a laboratory wavelength list with the support of energy and transition probability predictions in the Racah-Slater approach, using the Cowan codes and generalized least-squares fit (GLS) studies along the sequence of doubly-ionized lanthanides. Results: More than thirty new levels and ninety classified lines are established in Eu iii. Improved prediction of the Eu iii spectrum was achieved by using scaling factors for ab initio energy integrals, as well as effective configuration interaction parameters supplied by GLS studies. Transition probabilities, oscillator strengths, and Landé g-factors are calculated for the lines in the region 2000-9995 Å.
Table 5 is also available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/483/339

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