The embedded populations of two irradiated globules

我们打算对天鹅座X区两个孤立的恒星形成球体（DR18和ecx6 -21）中的恒星群的亚样本进行光谱分析。为此，我们在卡拉阿尔托用CAFOS仪器进行了3个晚上的观测。被研究的小球体很可能是由明亮的恒星组合天鹅座OB2的能量输入对分子复合物的侵蚀而形成的，我们想要测试“触发恒星形成”的场景。拟议的观测是基于去年在Calar Alto成功的PANIC观测，以及通过使用herschel， SOFIA（平流层红外天文观测站）和毫米分子线测绘的专用程序获得的数据。CalarAlto的观测继续了我们对天鹅座X中几个形成恒星的球体的研究（Schneider et al. 2016），特别是天鹅座X中的一个（IRAS20319+3958, Djupvik, Comeron, Schneider 2017）。

We intend to perform spectroscopy of a subsample of the stellarpopulation embedded in two isolated star-forming globules (DR18 andECX6-21) in the Cygnus X region. For that, we were awared 3 observingnights with the CAFOS instrument on Calar Alto. The globules to bestudied were probably formed as a consequence of the erosion of thatmolecular complex by the energetic input of the luminous stellarassociation Cygnus OB2 and we want to test the 'triggeredstar-formation' scenario. The proposed observations are based onsuccessfull PANIC observations at Calar Alto from last year inaddition to a data obtained through a dedicated program that usesHerschel, SOFIA (Stratospheric Observatory for Infrared astronomy),and millimeter molecular line mapping. The observations with CalarAlto continue our study of several star-forming globules in Cygnus X(Schneider et al. 2016) and one particular in Cygnus X(IRAS20319+3958, Djupvik, Comeron, Schneider 2017).