Pre-main-sequence stars in Lupus association

Kinematical analysis of spectroscopically identified pre-main-sequence stars associated with the Lupus dark cloud reveals a streamlike motion of low internal velocity dispersion...对与豺狼座暗云（Lupus dark cloud）成协的、经光谱证认的主序前星（pre-main-sequence stars）开展运动学分析，结果揭示出内部速度弥散度较低的流状运动……