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arXiv 1608.00396astro-ph.SR
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W UMa型接触双星V868 Mon的首次四色测光研究

The first four-color photometric investigation of the W UMa type contact binary V868 Mon

Zhou Xiao, Qian Shengbang, He Jiajia, Zhang Jia, Jiang Linqiao

摘要:

使用2013版的Wilson-Devinney方法,给出并分析了V868 Mon在$B$ $V$ $R_c$和$I_c$波段的第一个四色光变曲线。发现V868 Mon是一个A亚型接触双星(f= $58.9\,\%$),两个组分之间的温差为916 $K$。利用作者确定的8个新的最小光时,结合文献中收集的最小光时,发现$O$ - $C$曲线的总趋势是向上的抛物线变化,对应于轨道周期以$dP/dt=9.38\times{10^{-7}}day\cdot year^{-1}$的速率长期增加。这种连续增加可能是由于质量从质量较小的组分向质量较大的组分的质量转移引起的。

英文摘要:

The first four-color light curves of V868 Mon in the $B$ $V$ $R_c$ and $I_c$ bands are presented and analyzed by using the Wilson-Devinney method of the 2013 version. It is discovered that V868 Mon is an A-subtype contact binary (f=$58.9\,\%$) with a large temperature difference of 916$K$ between the two components. Using the eight new times of light minimum determined by the authors together with those collected from literatures, the authors found that the general trend of the observed-calculate ($O$-$C$) curve shows a upward parabolic variation that corresponds to a long-term increase in the orbital period at a rate of $dP/dt=9.38\times{10^{-7}}day\cdot year^{-1}$. The continuous increase may be caused by a mass transfer from the less massive component to the more massive one.

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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