论文标题
连接银河系外流和外流出：从Cygnus-X群集到活动星系
Connecting Galactic and extragalactic outflows: From the Cygnus-X cluster to active galaxies
论文作者
论文摘要
通常检测到源自原恒星和阿加拉外源的分子流出。对低质量，孤立的高质量和层次外源的研究揭示了连接流出的力和驱动源的源特性的缩放关系。这项工作的目的是检查聚类恒星形成对原始恒星流出及其扩展关系的影响，并探讨流出变化很大的扩展和能量学与通过相同物理过程发射一致的可能性。高角度分辨率CO J = 3-2观察结果在Cygnus-X分子云中使用了十个高质量原始体，作为PILS-CYGNUS调查的一部分，在SMA获得了。从这些数据中，测量了流出力。此外，从现有文献中组装了Protostellar和播出外流出冲突测量的扩展样本，以直接比较两种流水流的缩放关系。检测到来自PILS-CYGNUS调查的所有十个来源的分子流出，并且与文献的测量密切一致。原静脉和外层次源的比较揭示了95 \％的置信度，即0类Protostars和protagalactic源遵循相同的流出力量 - 体溶液仪的光度相关性。 Cygnus-X源与类似的包膜质量和降压光度的源之间的密切一致性表明，聚类的恒星形成对Protostellar流出没有显着影响。我们发现有很大的迹象表明，原恒星和阿拉加术流出与具有类似的发射机制是一致的。这种机制的存在将使单个通用流出启动模型的开发能够开发，尽管为了验证这种连接，需要更多的观察结果。
Molecular outflows are often detected originating from both protostellar and extragalactic sources. Studies of low-mass, isolated high-mass, and extragalactic sources reveal scaling relations connecting the force carried by an outflow and the properties of the source that drives it. The aim of this work is to examine the effects of clustered star formation on the protostellar outflows and their scaling relations and to explore the possibility that outflows varying greatly scale and energetics are consistent with being launched by the same physical processes. High-angular resolution CO J = 3-2 observations were used of ten high-mass protostars in the Cygnus-X molecular cloud, obtained at the SMA as part of the PILS-Cygnus survey. From these data, the outflow force was measured. In addition, an extended sample of protostellar and extragalactic outflow-force measurements was assembled from existing literature to allow for a direct comparison of the scaling relations of the two types of outflows. Molecular outflows were detected originating from all ten sources of the PILS-Cygnus survey, and their outflow forces are found in close agreement with measurements from the literature. The comparison of the protostellar and extragalactic sources reveals, with 95\% confidence, that Class 0 protostars and extragalactic sources follow the same outflow force--bolometric luminosity correlation. The close agreement between the Cygnus-X sources and sources of similar envelope mass and bolometric luminosity suggests that clustered star formation has no significant effect on protostellar outflows. We find a strong indication that protostellar and extragalactic outflows are consistent with having a similar launch mechanism. The existence of such a mechanism would enable the development of a single universal outflow launch model, although more observations are required in order to verify this connection.
