论文标题
Gaia数据释放中发现的74个新开放式群集的目录2
A catalogue of 74 new open clusters found in Gaia Data-Release 2
论文作者
论文摘要
基于Gaia DR2的天文数据，我们采用了一种无监督的机器学习方法来盲目地在银河纬度范围内以银河系的方式搜索开放式星团| b | <20度。除了2,080个已知群集外，还发现了74个新的开放集群候选者。在这项工作中，我们介绍了这些候选者的位置，明显的半径，视差，正确的运动和明星（https://cdsarc.u-strasbg.fr/ftp/ftp/ftp/ftp/vizier.submit//new_oc/）。同时，为了获得每个候选群集的物理参数，恒星等线剂适合光度数据。结果表明，这些新候选者的明显半径和观察到的适当运动分散与先前在Gaia Dr2中鉴定的开放群集的群集一致。
Based on astrometric data from Gaia DR2, we employ an unsupervised machine learning method to blindly search for open star clusters in the Milky Way within the Galactic latitude range of |b| < 20 degrees. In addition to 2,080 known clusters, 74 new open cluster candidates are found. In this work, we present the positions, apparent radii, parallaxes, proper motions and member stars of these candidates (https://cdsarc.u-strasbg.fr/ftp/vizier.submit//new_OC/). Meanwhile, to obtain the physical parameters of each candidate cluster, stellar isochrones are fit to the photometric data. The results show that the apparent radii and the observed proper motion dispersions of these new candidates are consistent with those of open clusters previously identified in Gaia DR2.
