来自盖亚数据发布2的宽二进制、三进制和四进制候选者目录（区域$\left\vert b\right\vert >25\,°$）
Catalogue of wide binary, trinary and quaternary candidates from the Gaia data release 2 (region $\left\vert b\right\vert >25\,°$)
摘要：
利用\textit{Gaia} -ESA DR 2星表研究了多星（主要是双星）的出现。我们应用优化的统计方法，我们以前开发的二维图案的分析。恒星场被分成一个个小块，代表一个统计分析集。具体地说，数据输入由半径为$0.02\,°$的圆（事件）的网格表示，该网格覆盖银河纬度$\left\vert b\right\vert >25\,°$范围内的天空。选择多颗恒星候选者的标准基于两个参数：角距和自行的共线。由于精度有限，径向分离仅用作较弱的补充约束。适当注意背景的准确计算，这是评估候选人质量的必要输入。我们的选择算法生成的候选目录：$900,842$二进制，$5,282$三进制和$30$四进制。
英文摘要：
The occurrence of multiple stars, dominantly binaries, is studied using the \textit{Gaia}-ESA DR2 catalogue. We apply the optimized statistical method that we previously developed for the analysis of 2D patterns. The field of stars is divided into a mosaic of small pieces, which represent a statistical set for analysis. Specifically, data input is represented by a grid of circles (events) with radius $0.02\,°$ covering the sky in the field of galactic latitude $\left\vert b\right\vert >25\,°$. The criteria for selecting candidates for multiple stars are based on two parameters: angular separation and collinearity of proper motion. Radial separation, due to limited accuracy, is used only as a weaker supplementary constraint. Due attention is paid to the accurate calculation of the background, which is a necessary input for evaluating the quality of the candidates. Our selection algorithm generates the catalogue of candidates: $900,842$ binaries, $5,282$ trinaries and $30$ quaternaries.
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