论文标题

接触二进制OQ CAM的第一次光度检查

The first photometric investigation of the contact binary OQ Cam

论文作者

Guo, Ya-Ni, Li, Kai, Xia, Qi-Qi, Gao, Xing, Jiang, Lin-Qiao, Liu, Yuan

论文摘要

介绍了B,V,R $ {_ C} $中的第一个充电耦合设备光度光曲线,以及i $ {_ c} $ band the短期period contact binary Star OQ CAM的频段。通过使用Wilson-Devinney代码分析光曲线,发现OQ CAM是W型浅接触二进制恒星,接触度为20.2%。基于O-C分析,轨道周期以$ dp/dt的速率= 4.40 \ times10 {^{ - 7}}天\ cdot年{^{ - 1}} $。可以通过从质量较小的成分到较大的元素转移来解释轨道周期的增加。随着轨道周期的增加,OQ CAM将从当前的浅接触配置发展为无接触阶段。因此,确认热弛豫振荡理论可能是潜在的候选者。

The first charge-coupled device photometric light curves in B, V, R${_c}$, and I${_c}$ 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 O-C analyzing, the orbit period displays a long term increasing with a rate of $dP/dt=4.40\times10{^{-7}} day \cdot year{^{-1}}$. 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 increasing, OQ Cam would evolve from the present shallow contact configuration to a none contact stage. So it may be a potential candidate to confirm the thermal relaxation oscillation theory.

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