论文标题
在VVV调查中，在近红外窗口中研究的一百个新的黯然失色的二进制系统候选人
A hundred new eclipsing binary system candidates studied in a near-infrared window in the VVV survey
论文作者
论文摘要
我们介绍了从最近在VíaLáctea（VVV）近未融合（NIR）调查的Vista变量中检测到的对黯然失色的二进制（EB）系统候选的广泛研究获得的第一个结果。我们分析了银河盘南部的VVV Tile D040，其中星际呈红色相对较低，这使得可以检测数百个新的黯然失色的二进制候选者。我们在这里介绍了在此“ NIR窗口”中发现的最佳候选者的几何和物理参数的光曲线，包括37个接触，50个分离和13个半独立式磨损的二进制二进制系统。我们推断，所研究的系统的平均$ k_s $振幅为$ 0.8 $ mag，中间时间为1.22天，通常，联系二进制文件的时间较短。使用基于Wilson和Devinney代码的“黯然失色的二进制文件的物理学”（Phoebe）交互式界面，我们发现所研究的系统具有较低的偏心率。研究的EBS分别为$ T_1 $和$ T_2 $组件的EBS的平均值约为5700 K和4900 K。接触EB星的平均质量比率（$ Q $）为$ \ sim $ 0.44。这种新的银河盘样品是对NIR EB系统进行大规模研究的第一种方法。
We present the first results obtained from an extensive study of eclipsing binary (EB) system candidates recently detected in the VISTA Variables in the Vía Láctea (VVV) near-infrated (NIR) Survey. We analyze the VVV tile d040 in the southern part of the Galactic disc wherein the interstellar reddening is comparatively low, which makes it possible to detect hundreds of new eclipsing binary candidates. We present here the light curves and the determination of the geometric and physical parameters of the best candidates found in this "NIR window", including 37 contact, 50 detached and 13 semi-detached eclipsing binary systems. We infer that the studied systems have an average of the $K_s$ amplitudes of $0.8$ mag and a median period of 1.22 days where, in general, contact binaries have shorter periods. Using the "Physics Of Eclipsing Binaries" (PHOEBE) interactive interface, which is based on the Wilson and Devinney code, we find that the studied systems have low eccentricities. The studied EBs present mean values of about 5700 K and 4900 K for the $T_1$ and $T_2$ components, respectively. The mean mass-ratio ($q$) for the contact EB stars is $\sim$ 0.44. This new Galactic disc sample is a first approach to the massive study of NIR EB systems.
