Radial velocity survey of Cyg OB2 association

We conducted a radial velocity survey of the Cyg OB2 association over a 6yr (1999-2005) time interval to search for massive close binaries. During this time we obtained 1139...我们于1999至2005年的6年观测周期内，针对天鹅座OB2星协（Cyg OB2 association）开展径向速度巡天，以搜寻大质量密近双星。在此期间，我们共获取了1139……