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-infrared (NIR) Survey. We analyse 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 EB 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 EB 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 5 700 and 4 900 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 disk sample is a first look at the massive study of NIR EB systems.

中文翻译：

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在 VVV 调查的近红外窗口中研究了一百个新的食双星系统候选者

我们展示了最近在 Vía Láctea (VVV) 近红外 (NIR) 调查中的 VISTA 变量中检测到的食双星 (EB) 系统候选者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 瓦片 d040，其中星际红化相对较低，这使得检测数百个新的 EB 候选者成为可能。我们在这里展示了在这个“近红外窗口”中找到的最佳候选者的光变曲线以及几何和物理参数的确定，包括 37 个接触、50 个分离和 13 个半分离 EB 系统。我们推断所研究的系统具有平均 $K_s$ 的幅度 $0.8$ mag 和 1.22 天的中位周期，一般来说，接触双星的周期较短。使用基于 Wilson 和 Devinney 代码的“食双星物理”（PHOEBE）交互界面，我们发现所研究的系统具有低偏心率。所研究的 EB 的平均值约为 5 700 和 4 900 K $T_1$ 和 $T_2$ 组件，分别。平均质量比 (q) 对于接触 EB 星是 $\sim$ 0.44。这个新的银盘样本是对 NIR EB 系统的大规模研究的第一次观察。