论文标题
来自Eclips like二进制明星的开普勒目录中的49个新恒星双胞胎的列表
A List of 49 New Stellar Twins from the Kepler Catalog of Eclipsing Binary Stars
论文作者
论文摘要
49新的黯然失色的双二进制候选者根据开普勒黯然失色的二进制光曲线进行了识别和分析。他们的颜色和光谱类型是根据我们的分类计算的。比较黯然失色的双二元系统的光谱类型分布表明，F型双胞胎在其他研究中占主导地位，这与最近的研究非常吻合。双二元与银河平面的黯然失色的距离表明，F和G型双胞胎在距离银河平面的任何距离都可以看到，并且大多数已知的Eclips二进制双胞胎都位于银河平面200 PC之内，可以解释为这些系统是这些系统的成员。作为一个案例研究，已经通过光谱和开普勒数据分析了从我们更新的双胞胎v396〜GEM列表中选择的双二进制系统。结果，我们得出了V396〜GEM的组件的物理参数为$ M_ {1,2}（M_ \ odot）= 1.814 \ pm0.114 $，$ 1.797 \ pm0.114 $; $ r_ {1,2}（r_ \ odot）= 2.655 \ pm0.078 $，$ 2.659 \ pm0.090 $; $ t _ {\ mathrm {eff} _ {1,2}}}（k）= 7000 \ pm100 $，$ 6978 \ pm100 $; $ [m/h] = 0.11 \ pm0.03 $。我们已经使用MESA计算了组件的进化状态。 V396〜GEM的组件的准确得出的物理参数使我们能够确定系统的年龄为1.168 $ \ pm $ 0.149 BYRS。
49 new eclipsing twin binary candidates are identified and analyzed based on Kepler eclipsing binary light curves. Their colours and spectral types are calculated according to our classification. A comparison of the spectral type distribution of eclipsing twin binary systems showed that F-type twins dominate among others, which agrees well with recent studies. The distance of eclipsing twin binaries from the galactic plane shows that F and G-type twins can be seen at any distance from the galactic plane and most of the known eclipsing binary twins are located within 200 pc of the galactic plane, which could be interpreted as these systems are members of thin disk population. As a case study, a twin binary system selected from our updated list of twins, V396~Gem, has been analyzed with spectroscopic and Kepler data. As a result, we have derived the physical parameters of the components of V396~Gem as $M_{1,2}(M_\odot)= 1.814\pm0.114$, $1.797\pm0.114$; $R_{1,2}(R_\odot)= 2.655\pm0.078$, $2.659\pm0.090$; $T_{\mathrm{eff}_{1,2}}(K)=7000\pm100$, $6978\pm100$; $[M/H]=0.11\pm0.03$. We have calculated the evolutionary status of the components by using MESA. Accurately derived physical parameters of the components of V396~Gem have allowed us to determine the age of the system as 1.168$\pm$0.149 Byrs.
