NSVS 1908107, an EB-type eclipsing binary in the open cluster NGC 869
NSVS 1908107, an EB-type eclipsing binary in the open cluster NGC 869
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NSVS 1908107，疏散星团 NGC 869 中的 EB 型食双星
DOI：
10.1088/1674-4527/16/7/109
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发表时间：
2016
影响因子：
1.8
通讯作者：
Zhou Qiang
中科院分区：
文献类型：
--
作者：
Pan Yang;Luo Zhi-Quan;Zhang Xiao-Bin;Deng Li-Cai;Wang Kun;Luo Yang-Ping;Fang Wei-Jing;Peng Yin-Jiang;Sun Jin-Jiang;Liu Qi-Li;Zhou Qiang
本文对年轻疏散星团NGC 869的一颗EB型食双星NSVS 1908107进行了时间序列BV CCD测光。通过使用2003年版本的Wilson-Devinney代码获得光度解决方案。结果表明，该双星系统是一个次级成分充满洛希瓣的半分离双星系统。质量比测定为0.059±0.001。利用该星系团的物理参数，估算了NSVS 1908107的两个组成部分的质量、半径和光度分别为：M1 = 10.34±2.29 M <$，R1 = 4.65±0.34 R <$，L1 = 8076±371 L <$; M2 = 0.61±0.13 M <$，R2 = 2.40±0.17 R <$，L2 = 1054±48 L <$。结果表明，次级成分可能是一颗巨星或次巨星星星，外层被剥离。
We present a time-series BV CCD photometry for an EB-type eclipsing binary NSVS 1908107, a member of the young open cluster NGC 869. The photometric solution was obtained by using the 2003 version of the Wilson-Devinney code. It reveals that the system is a semi-detached binary with the secondary component filling its Roche lobe. The mass ratio was determined to be 0.059±0.001. With the physical parameters of the cluster, the masses, radii and luminosities of the two components of NSVS 1908107 are estimated to be M1 = 10.34±2.29 M⊙, R1 = 4.65±0.34 R⊙, L1 = 8076±371 L⊙ and M2 = 0.61±0.13 M⊙, R2 = 2.40±0.17 R⊙, L2 = 1054±48 L⊙ respectively. The results show that the secondary component could be a giant or subgiant star with the outer envelope being stripped.