论文标题
关于Aquila Rift的云结构和动态的详细分析
A detailed analysis on the cloud structure and dynamics in Aquila Rift
论文作者
论文摘要
我们在覆盖W40的1平方度区域的几个分子发射线中介绍了地图和属于Aquila Rift复合物的Serpens South Molecular云。观察结果是用Nobeyama无线电观测站的45 M望远镜进行的。我们发现$^{12} $ CO和$^{13} $ CO排放线由几个具有不同空间分布的速度组件组成。形成W40和Serpens South的主云的组件，我们称为“主组件”，其速度为$ v _ {\ rm lsr} \ simeq 7 $ km s $ s $^{ - 1} $。 $ v _ {\ rm lsr} \ simeq 40 $ km s $^{ - 1} $有另一个重要组成部分，我们称其为“ 40 km s $ s $^{ - 1} $ component”。后一个组件主要分布在两个年轻的簇附近：W40和Serpens South。此外，这两个组件在空间上具有抗相关性。这种空间构型表明，W40和Serpens South中的恒星形成是由两个组件的碰撞引起的。我们还讨论了一种可能性，即40 km S $^{ - 1} $组件由SNRS和Scorpius-Centaurus协会创建的SuperBubbles扫除的气体组成。
We present maps in several molecular emission lines of a 1 square-degree region covering the W40 and Serpens South molecular clouds belonging to the Aquila Rift complex. The observations were made with the 45 m telescope at the Nobeyama Radio Observatory. We found that the $^{12}$CO and $^{13}$CO emission lines consist of several velocity components with different spatial distributions. The component that forms the main cloud of W40 and Serpens South, which we call the "main component", has a velocity of $V_{\rm LSR}\simeq 7$ km s$^{-1}$. There is another significant component at $V_{\rm LSR}\simeq 40$ km s$^{-1}$, which we call the "40 km s$^{-1}$ component". The latter component is mainly distributed around two young clusters: W40 and Serpens South. Moreover, the two components look spatially anti-correlated. Such spatial configuration suggests that the star formation in W40 and Serpens South was induced by the collision of the two components. We also discuss a possibility that the 40 km s$^{-1}$ component consists of gas swept up by superbubbles created by SNRs and stellar winds from the Scorpius-Centaurus Association.
