Science News内容：

　　题 目：Still Missing After 70 Years:A Bright triple transient that vanished within 50 minutes

　　摘 要：Three optically bright, ～15th mag, point-sources within 10 arcsec of each other are reported vanished within 1 hour, based on two consecutive exposures in POSS-I. The three point-sources have continued to be absent in telescope exposures during 71 years, and several possible explanations have been brought out.

　　报告人：王琪茗（紫台研究生）

Journal club内容：

　　题 目：Improving the open cluster census with a hybrid machine learning method

　　摘 要：Data from the Gaia satellite are revolutionising our understanding of the Milky Way. With the new Gaia data release, we need to update the census of open clusters. We have conducted the largest search for open clusters to date using a hybrid machine learning method, aiming to conduct a blind, all-sky search for open clusters using 729 million sources from Gaia DR3, and creating a homogeneous catalogue of clusters including many new objects.

　　报告人：刘鹏辉（紫台研究生）

　　时 间：2023年12月12日星期二12:15

　　地 点：紫台3-402

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