Abstract

The neglecting of Stark broadening in analysis and synthesis of hot stars spectra in some cases could cause errors in abundance determination. We analysed Co II lines in the spectrum of \(\chi \) Lupi and found two well-isolated and strong lines (\(\lambda \lambda \) 2022.354, 2027.040 Å) suitable for the investigation of influence of Stark broadening. Since the results for both lines are qualitatively the same, we will discuss only for one of them. Comparisons of synthetic lines with and without taking of Stark broadening into consideration, in the case of the \(\chi \) Lupi star and for the Co II lines, show that even when Stark width is negligible in comparison with Doppler width, Stark broadening may influence line wings.

Graphic abstract

中文翻译：

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斯塔克展宽对炽热恒星Co II谱线建模的影响

摘要

在某些情况下，热星光谱分析和合成中忽略Stark拓宽可能会导致丰度测定中的错误。我们分析的频谱有限II线\（\卡\），鹿皮，发现两所分离和有力的线条（\（\拉姆达\拉姆达\） 2022.354，2027.040埃）适合斯塔克加宽的影响进行调查。由于两条线的结果在质量上都是相同的，因此我们仅针对其中一条进行讨论。对于\（\ chi \） Lupi星和Co II线，在有和没有考虑到Stark展宽的情况下，合成线的比较表明，即使Stark宽度与Doppler宽度相比可以忽略不计，Stark展宽可能会影响线翼。

图形摘要