The broadening of FeII lines by neutral hydrogen collisions

被引：103

作者：

Barklem, PS ^{[1
]}

Aspelund-Johansson, J ^{[1
]}

机构：

[1] Univ Uppsala, Dept Space Phys & Astron, S-75120 Uppsala, Sweden

来源：

ASTRONOMY & ASTROPHYSICS | 2005年 / 435卷 / 01期

关键词：

atomic data; line : profiles;

D O I：

10.1051/0004-6361:20042469

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Data for the broadening of 24188 Fe II lines by collisions with neutral hydrogen atoms have been computed using the theory of Anstee & O'Mara as extended to singly ionised species and higher orbital angular momentum states by Barklem & O'Mara. Data have been computed for all Fe II lines between observed energy levels in the line lists of Kurucz with log g f > - 5 for which the theory is applicable. The variable energy debt parameter E-p used in computing the second order perturbation theory potential is chosen to be consistent with the long range dispersion interaction constant C-6 computed using the f-values from Kurucz.

引用

页码：373 / 377

页数：5

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