3s23p-3s3p2 transitions in SIV

被引：23
作者：
Hibbert, A [1 ]
Brage, T
Fleming, J
机构：
[1] Queens Univ Belfast, Dept Appl Math & Theoret Phys, Belfast BT7 1NN, Antrim, North Ireland
[2] Lund Univ, Dept Phys, S-22100 Lund, Sweden
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2002年 / 333卷 / 04期
关键词：
atomic data;
D O I：
10.1046/j.1365-8711.2002.05473.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
引用
收藏
页码：885 / 893
页数：9
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