标题： 位于Cyg OB1星协周围超壳层边缘的恒星形成区。 I. 星团vdB 130及其周围的气体和尘埃介质 显示英文标题

标题： Star-forming regions at the periphery of the supershell surrounding the Cyg OB1 association. I. The star cluster vdB 130 and its ambient gas and dust medium

摘要： 利用SAO RAS的6米望远镜和MSU SAI的125厘米望远镜获得的光学观测数据，结合Spitzer和Herschel的数据，分析了疏散星团vdB 130附近的恒星群体和星际气尘介质。 基于自行数据以及BV和JHKs 2MASS测光数据，我们挑选出36颗恒星作为可能的星团成员。 vdB 130中的某些恒星被归类为B型星。 我们估算的最小颜色消光、视距模数和距离与星团vdB 130的年轻年龄（从5到10百万年）一致。 我们认为该星团方向上存在对常规消光定律的大偏差，其中$R_V$约为4到5。 vdB 130星团似乎在物理上与Cyg OB1周围的超壳、彗状CO云、电离气体以及红外辐射区域相关联。 vdB 130附近有几个明亮的中红外发射区域。 其中最大的一个在H-alpha和[SII]发射图上也可以看到。 我们认为投影上与分子云头部重合的红外斑块是被星团B型星激发的HII区。 在这几个红外亮区之间识别出了激波前沿的一些特征。 显示英文摘要

摘要： Stellar population and the interstellar gas-dust medium in the vicinity of the open star cluster vdB 130 are analysed using optical observations taken with the 6-m telescope of the SAO RAS and the 125-cm telescope of the SAI MSU along with the data of Spitzer and Herschel. Based on proper motions and BV and JHKs 2MASS photometric data, we select additional 36 stars as probable cluster members. Some stars in vdB 130 are classified as B stars. Our estimates of minimum colour excess, apparent distance modulus and the distance are consistent with young age (from 5 to 10 Myrs) of the cluster vdB 130. We suppose the large deviations from the conventional extinction law in the cluster direction, with $R_V$ ~ 4 - 5. The cluster vdB 130 appears to be physically related to the supershell around Cyg OB1, a cometary CO cloud, ionized gas, and regions of infrared emission. There are a few regions of bright mid-infrared emission in the vicinity of vdB 130. The largest of them is also visible on H-alpha and [SII] emission maps. We suggest that the infrared blobs that coincide in projection with the head of the molecular cloud are HII regions, excited by the cluster B-stars. Some signatures of a shock front are identified between these IR-bright regions.