Cas OB5星群中高亮度恒星的长期光谱监测

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-17 DOI:10.22323/1.425.0041

E. Islentieva, V. Klochkova

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引用次数: 0

摘要

我们报告了超巨星HD 223960 (A0.1 Ia)和HD 225094 (B2.9 Iab)的第一个光谱结果，它们是Cas OB5协会的成员。我们的研究是基于ba型超巨星的长期光谱。2017 - 2021年，利用特殊天体物理天文台6米望远镜，利用NES梯队光谱仪获得了高分辨率梯队光谱。我们对恒星大气和星周介质中的速度场进行了分析，发现了HI和HeI谱线的剖面变异性以及星际NaI和KI谱线的多分量结构。多面宇宙:

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Long-term spectral monitoring of the high-luminosity stars in the Cas OB5 association

We report our first results of the spectroscopy of the supergiants HD 223960 (A0.1 Ia) and HD 225094 (B2.9 Iab), which are members of the Cas OB5 association. Our study is based on the long-term spectroscopy of BA-type supergiants. The high-resolution echelle spectra were obtained in 2017 — 2021 with the 6 meter telescope of the Special Astrophysical Observatory using echelle spectrograph NES. We provided an analysis of the velocity field in the stellar atmospheres and in the circumstellar medium, and found the profile variability of the HI and HeI lines and multicomponent structure of interstellar NaI and KI lines. The Multifaceted Universe:

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Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022)

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