Milky Way Outskirts Hotter,Thicker than Previously Thought  

出　　处：《Bulletin of the Chinese Academy of Sciences》2017年第2期103-103,共1页中国科学院院刊（英文版）

摘　　要：Using action-based methods and anti-center K-giant data from the Large Sky Area MultiObject Fiber Spectroscopic Telescope(LAMOST),a group of researchers at the National Astronomical Observatories,CAS have re-examined the outskirts of the Milky Way Galaxy and found them apparently larger and thicker than astronomersUsing action-based rnethods and anti-center K-giant data from the Large Sky Area Multi- Object Fiber Spectroscopic Telescope （LAMOST）, a group of researchers at the National Astronomical Observatories, CAS have re-examined the outskirts of the Milky Way Galaxy and found them apparently larger and thicker than astronomers had previously thought. Their discovery will provide new insights into the formation of the Milky Way disk and challenge the conventional dynamical models.

关 键 词：银河系 郊区 LAMOST 天文望远镜 大天区面积 国家天文台 中国科学院 动力学模型 

分 类 号：P156[天文地球—天文学] TH751[机械工程—仪器科学与技术]