论文标题
使用Gaia III研究的热分子恒星的种群。已知热分子星星的目录：数据发布2
Population of hot subdwarf stars studied with Gaia III. Catalogue of known hot subdwarf stars: Data Release 2
论文作者
论文摘要
鉴于持续的光谱调查对热门细分的大量发现以及从地面光度测量和Gaia Mission Data Release 2获得的新的全套数据的可用性，我们编制了已知的热subdwarf星的更新目录。该目录包含5874个独特的来源，其中包括528个以前未知的热分子，并提供了多波段的光度法，GAIA的天文学以及基于光谱和颜色的分类。该新目录提供了2187颗恒星的大气参数和文献中2790颗恒星的径向速度。使用颜色，绝对幅度和降低适当的运动标准，我们确定了268个以前错误分类的物体，其中大多数是较不发光的白色矮人或更发光的蓝色水平分支和主序列恒星。
In light of substantial new discoveries of hot subdwarfs by ongoing spectroscopic surveys and the availability of new all-sky data from ground-based photometric surveys and the Gaia mission Data Release 2, we compiled an updated catalogue of the known hot subdwarf stars. The catalogue contains 5874 unique sources including 528 previously unknown hot subdwarfs and provides multi-band photometry, astrometry from Gaia, and classifications based on spectroscopy and colours. This new catalogue provides atmospheric parameters of 2187 stars and radial velocities of 2790 stars from the literature. Using colour, absolute magnitude, and reduced proper motion criteria, we identified 268 previously misclassified objects, most of which are less luminous white dwarfs or more luminous blue horizontal branch and main-sequence stars.
