Orbital Period Study of the RS CVn-Type Binary WW Draconis

Orbital Period Study of the RS CVn-Type Binary WW Draconis
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RS CVn型双星WW Draconis的轨道周期研究

DOI:
10.1093/pasj/62.3.515
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发表时间:
2010-06
影响因子:
2.3
通讯作者:
--
中科院分区:
物理与天体物理4区
文献类型:
--
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研究了RS cvn型双星系统wwdra的轨道周期变化。我们证实了双星的轨道周期呈周期性变化,幅度很大,为0.2495天。我们详细讨论了解释系统周期变化的机制,特别是三次分量的光行时间轨道或磁活动周期。在这两种机制中,我们发现后者更合理。
The orbital period variation of the RS CVn-type binary system WW Dra was studied based on all available times of light minima. We confirmed that the orbital period of the binary shows a cyclical change with a large amplitude of 0.2495 days. We discussed in detail the mechanisms that could explain the period change of the system, especially the light-travel time orbit of a tertiary component or magnetic activity cycle. Of these two mechanisms, we find that the latter is more plausible.
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