Wolf-Rayet and O-star runaways kinematics

Reliable systemic radial velocities are almost impossible to secure for Wolf-Rayet stars, difficult for O stars. Therefore, to study the motions - both systematic in the Galaxy...针对沃尔夫-拉叶星（Wolf-Rayet stars），获取可靠的系统性视向速度几乎难以实现，而对于O型星（O stars）而言，这类观测同样难度颇高。因此，为了研究这些运动——包括银河系内的系统性运动……