Hα Variations in the Spectrum of the Supergiant HD 199478

被引：0

作者：

Ismailova, Sh. K. ^{[1
]}

Ismailov, N. Z. ^{[1
]}

Mikailov, Kh. M. ^{[1
]}

机构：

[1] Shamakhy Astrophys Observ ANAS, Shamaky, Azerbaijan

来源：

STARS: FROM COLLAPSE TO COLLAPSE | 2017年 / 510卷

关键词：

VARIABILITY; STARS;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of observations of profiles and spectral parameters of the Ha line in the spectrum of the supergiant HD 199478 in 2011 and 2013-2015. We discovered variations in the parameters of the line with a characteristic time of 22 days, which agrees well with the data of other authors. Variations are not strictly periodic in nature and possibly are the results of radial pulsations in upper layers of the stellar atmosphere.

引用

页码：166 / 169

页数：4

共 5 条

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[4] Bright OB stars in the Galaxy - IV. Stellar and wind parameters of early to late B supergiants
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Puls, J.
[J]. ASTRONOMY & ASTROPHYSICS, 2008, 478 (03): : 823 - 842
[5] Markova N, 2000, ASTRON ASTROPHYS, V363, P995

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