B[e]超巨星MWC 137的星团分子结构
Clumpy molecular structures revolving the B[e] supergiant MWC 137
摘要：
最近，一颗特殊的发射线恒星MWC 137及其延伸的光学星云被归类为B[e]超巨星。为了研究其星周分子气体在小尺度和大尺度上的空间分布，我们分别使用SINFONI和APEX进行了近红外和射电观测。我们发现热的CO气体排列在靠近恒星的移动的星云环和壳层结构中，而冷的CO包层从南到西包围着光学星云的边界。
英文摘要：
The peculiar emission-line star MWC 137 with its extended optical nebula was recently classified as B[e] supergiant. To study the spatial distribution of its circumstellar molecular gas on small and large scales, we obtained near-infrared and radio observations using SINFONI and APEX, respectively. We find that the hot CO gas is arranged in moving clumpy ring and shell structures close to the star, while a cold CO envelope is encircling the borders of the optical nebula from the south to the west.
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