Weighted oscillator strengths and lifetimes for the Si III spectrum

被引：11
|
作者：
Callegari, F [1 ]
Trigueiros, AG [1 ]
机构：
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, UNICAMP, BR-13083970 Campinas, SP, Brazil
来源：
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 1998年 / 119卷 / 02期
关键词：
atomic data;
D O I：
10.1086/313158
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The weighted oscillator strengths (gf) and the lifetimes for Si III presented in this work were carried out in a multiconfiguration Hartree-Fock relativistic (HFR) approach. In this calculation, the electrostatic parameters were optimized by a least-squares procedure in order to improve the adjustment to experimental energy levels. This method produces gf-values that are in better agreement with intensity observations and lifetime values that are closer to the experimental ones. In this work we presented all the experimentally known electric dipole Si III spectral lines.
引用
收藏
页码：181 / 188
页数：8
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