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arXiv 1102.5211astro-ph.SR
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共生双星StHa 190的G巨星自转同步

Synchronization of the G Giant Rotation in the Symbiotic Binary StHa 190?

M. Cikała, M. Mikołajewski, T. Tomov, D. Kolev, L. Georgiev, U. Munari, P. Marrese, T. Zwitter

摘要:

我们提出了一个共生星StHa 190的高分辨率光谱观测分析。根据G型吸收线和HeII 4686A发射线的径向速度,得到了30天的周期。这项工作的主要目的是寻找解释非常宽的吸收线的黄色巨人。从吸收线径向速度得到的非常低的质量函数表明,观测到的变化可能与该恒星的轨道运动无关。

英文摘要:

We present an analysis of high resolution spectral observations of the symbiotic star StHa 190. A 30 days period has been derived from radial velocities of the G-type absorption lines and the HeII 4686A emission line. The main aim of this work was to look for explanation of the very wide absorption lines of the yellow giant. The very low mass function obtained from the absorption lines radial velocities suggests that the observed changes probably do not corespond to the orbital motion of this star.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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