WIYN open cluster study. LX. RV survey of NGC 6819
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We present the current state of the WOCS radial-velocity (RV) survey for the rich open cluster NGC 6819 (2.5Gyr) including 93 spectroscopic binary orbits with periods ranging...
本研究介绍了针对富含天体的疏散星团NGC 6819(2.5Gyr,即25亿年)的WOCS径向速度(radial velocity, RV)巡天的研究现状,该巡天包含93个周期范围不等的分光双星轨道……



