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物理  2015 

lamost恒星光谱巡天与银河系恒星晕研究

, PP. 228-236

Keywords: 天体物理,银河系,银晕,光谱巡天

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Abstract:

?星系的形成和演化问题是当今天体物理的前沿和核心。由于身居其中,而且可以对单个的恒星进行仔细的观测,银河系因此成为了研究星系的形成和演化乃至宇宙学的一个极重要样本。银河系的晕(包括恒星晕和暗物质晕)被证实具有非常复杂的结构,其中所蕴藏的信息使人们有可能揭示银河系的结构、形成和丰富的演化历史,其中的一些特殊天体可以用来探求银河系中央黑洞等当下天体物理的热点问题。lamost银河系恒星低分辨光谱巡天是迄今为止最大的同类观测项目,其形成的数据库非常适宜人们开展许多银河系结构和演化方面的工作。文章介绍了lamost银河系巡天在银晕和相关结构上正在开展的研究工作,并展示了一些早期的科学研究成果。

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