3s(2)3p-3s3p(2) transitions in SIV

Summary, in English

We use both the civ3 and mchf codes to calculate oscillator strengths of allowed and intercombination lines in the 3s(2) 3p-3s3p(2) 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 transitions, compared with an experimental value of 1.12+/-0.1. The A -values of the intercombination lines are substantially different from those of previous calculations.

• Författare: A Hibbert; Tomas Brage; J Fleming
• Avdelning/ar: Fysiska institutionen
• Publiceringsår: 2002
• Språk: Engelska
• Sidor: 885-893
• Publikation/Tidskrift/Serie: Monthly Notices of the Royal Astronomical Society
• Volym: 333
• Issue: 4
• Länkar: http://dx.doi.org/10.1046/j.1365-8711.2002.05473.x
• Dokumenttyp: Artikel i tidskrift
• Förlag: Oxford University Press
• Ämne: Condensed Matter Physics
• Nyckelord: atomic data
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 1365-2966