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The first photometric investigation of the contact binary OQ Cam
Research in Astronomy and Astrophysics ( IF 1.8 ) Pub Date : 2020-11-25 , DOI: 10.1088/1674-4527/20/11/179
Ya-Ni Guo 1 , Kai Li 1, 2 , Qi-Qi Xia 1 , Xing Gao 2 , Lin-Qiao Jiang 3 , Yuan Liu 4
Affiliation  

The first charge-coupled device photometric light curves in B, V, Rc , and Ic bands of the short-period contact binary star OQ Cam are presented. Through analyzing the light curves with the Wilson-Devinney code, it is found that OQ Cam is a W-type shallow contact binary star with a contact degree of f = 20.2%. Based on the OC analyzing, the orbit period displays a long term increasing with a rate of dP/dt = 4.40 10−7 d yr−1. The increasing in orbit period can be interpreted by mass transfer from the less massive component to the more massive one. As the orbit period increases, OQ Cam would evolve from the present shallow contact configuration to a non-contact stage. So it may be a potential candidate to confirm the thermal relaxation oscillation theory.



中文翻译:

接触二元OQ Cam的首次光度研究

给出了短周期接触双星OQ Cam的B V Rc Ic波段的一个电荷耦合器件光度曲线。用Wilson-Devinney码分析光变曲线,发现OQ Cam是W型浅接触双星,接触度f =20.2%。根据O - C分析,轨道周期呈长期增长趋势,dP / dt = 4.40 10 -7 d yr -1 . 轨道周期的增加可以解释为从质量较小的组件到质量较大的组件的质量转移。随着轨道周期的增加,OQ Cam 将从目前的浅接触配置演变为非接触阶段。因此,它可能是证实热弛豫振荡理论的潜在候选者。

更新日期:2020-11-25
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