Proper motions of cool stars in Upper Sco OB

Proper motion measurements of the cool and ultracool populations in the Upper Scorpius OB association are crucial to confirm membership and to identify possible run-away...

针对上天蝎OB星协（Upper Scorpius OB association）中的冷族群与超冷族群天体进行自行（Proper motion）测量，对于确认该类天体的星协成员身份以及识别潜在逃逸天体均具有关键意义。