【摘 要】
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About 786.4 thousand stars were observed by LAMOST twice or more during the first stage of its spectroscopic survey. The radial velocity differences for about 2
【机 构】
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YunnanObservatories,KeyLaboratoryoftheStructureandEvolutionofCelestialObjects,CenterforAstronomicalM
【基金项目】
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The Guo Shou Jing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences,provided by the Nati