Abstract

Stark widths for 19 lines in the spectrum of singly charged lutetium ion have been calculated using modified semiempirical method for an electron density of \(10^{17}\hbox { cm}^{-3}\) and temperatures from 5 000 K up to 80 000 K. The obtained results have been used for the investigation of the influence of Stark broadening on Lu II spectral lines in stellar atmospheres and for the investigations of Stark width regularities. In the case of Lu II lines considered in this work, Stark broadening is important for white dwarfs but can be neglected in A-type star atmospheres.

Graphic Abstract

中文翻译：

---

Lu II谱线的明显宽度

摘要

对于电子密度为\(10^{17}\hbox { cm}^{-3}\)和温度为 5 000 K的单电荷镥离子光谱中 19 条谱线的斯塔克宽度已使用改进的半经验方法计算高达 80 000 K。所得结果已用于研究 Stark 展宽对恒星大气中 Lu II 谱线的影响以及 Stark 宽度规律的研究。在这项工作中考虑的 Lu II 线的情况下，斯塔克展宽对白矮星很重要，但在 A 型恒星大气中可以忽略不计。

图形摘要