论文标题
动态恒星形成per ob2的历史
Dynamical star forming history of Per OB2
论文作者
论文摘要
我们使用GAIA EDR3数据（包括Per OB2和California Cloud）分析了年轻恒星向珀尔修斯的内部动力学。解释当前的动力学，我们推测，每个OB2可能是由两个独立的云中形成的，这些云已经开始在彼此的紧密近端形成恒星。 IC 348在两个之间的中间捕获，遗传了两者的运动学，并且它是云云相互作用的可能位置。我们还考虑了每次OB2中过去超新星的可能性 - 虽然可能发生了，但它似乎并未引起任何明显的触发恒星形成，但是它产生了一种冲击，使分子气扫除了IC 348。最后，我们检查了最近提出的Taurus和Taurus和Perseus之间的壳。尽管它的起源未知，但我们没有发现对恒星运动学中不断扩展的气泡的支持，也无法确定可能导致它的超新星的祖细胞，而不利于这种情况形成这种明显的外壳。
We analyze the internal dynamics of young stars towards Perseus using Gaia EDR3 data, including Per OB2 and California Cloud. Interpreting the current dynamics, we speculate that Per OB2 may have formed from two separate clouds that have begun forming stars in a close proximity of each other. IC 348 is caught in the middle between the two of them, inheriting kinematics of both, and it stands out as a possible site of cloud cloud interaction. We also consider a possibility of a past supernova in Per OB2 - while one had likely occurred, it did not appear to have caused any obvious triggered star formation, but it has created a shock which has swept away the molecular gas away from IC 348. Finally, we examine a recently proposed shell between Taurus and Perseus. While its origin is unknown, we find no support for an expanding bubble in stellar kinematics, nor can we identify a likely progenitor for a supernova that may have caused it, disfavoring this scenario in the formation of this apparent shell.
