Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mnras.333..885h&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 333, Issue 4, pp. 885-893.
Astronomy and Astrophysics
Astronomy
12
Atomic Data
Scientific paper
We use both the CIV3 and MCHF codes to calculate oscillator strengths of allowed and intercombination lines in the 3s23p-3s3p2 multiplets. Valence, core-valence and some core-core correlation effects are included. The two approaches give results in excellent agreement. Core effects are particularly important for the intercombination lines, though relatively minor for allowed transitions. We obtain a branching ratio of 1.42 with an estimated accuracy of 0.02 for the 3s23p\,2PoJ- 3s3p22S1/2 transitions, compared with an experimental value of 1.12+/-0.1. The A-values of the 2PoJ-4PJ\prime intercombination lines are substantially different from those of previous calculations.
Brage Tomas
Fleming Janine
Hibbert Alan
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