论文标题
大型团块中的插座，带有明亮的红外资源
Infall in massive clumps harboring bright infrared sources
论文作者
论文摘要
观察到与明亮红外源相关的三十个大型团块，可以检测到插入式签名并表征CO（4-3）和C $^{17} $ O（3-2）线的Apex TeleScope在大规模团块中的插入特性。十八个对象在CO（4-3）线中具有小于2的病毒参数的“蓝色轮廓”，这表明在这些庞大的团块中发生了全球崩溃。通过两层模型拟合CO（4-3）线，以获得插入速度和质量中心速率。派生的质量输入费率来自10 $^{ - 3} $至10 $^{ - 1} $ M $ _ {\ odot} $ yr $^{ - 1} $。团块质量与插入率之间的正相关关系似乎表明重力在崩溃过程中起主要作用。较高的发光度团块具有较大的质量中心速率，这意味着质量较高的质量中心速率的团块具有较高的恒星形成速率。
Thirty massive clumps associated with bright infrared sources were observed to detect the infall signatures and characterize infall properties in the envelope of the massive clumps by APEX telescope in CO(4-3) and C$^{17}$O(3-2) lines. Eighteen objects have "blue profile" in CO(4-3) line with virial parameters less than 2, suggesting that global collapse is taking place in these massive clumps. The CO(4-3) lines were fitted by the two-layer model in order to obtain infall velocities and mass infall rates. Derived mass infall rates are from 10$^{-3}$ to 10$^{-1}$ M$_{\odot}$yr$^{-1}$. A positive relationship between clump mass and infall rate appears to indicate that gravity plays a dominant role in the collapsing process. Higher luminosity clump has larger mass infall rate, implying that the clump with higher mass infall rate has higher star formation rate.
