Extended analysis of the Eu  III spectrum

摘要: Aims. We create an Eu iii new atomic data set for interpreting the spectra of chemically peculiar stars by extended analysis doubly-ionized europium. Methods. classified Eu iii spectral lines from a laboratory wavelength list with support energy and transition probability predictions in Racah-Slater approach, using Cowan codes generalized least-squares fit (GLS) studies along sequence lanthanides. Results. More than thirty new levels ninety are established Eu iii. Improved prediction Eu iii  spectrum was achieved scaling factors ab initio integrals, as well effective configuration interaction parameters supplied GLS studies. Transition probabilities, oscillator strengths, Lande g -factors calculated region 2000–9995 A.