Broad-velocity-width Molecular Features in the Galactic Plane
Broad-velocity-width Molecular Features in the Galactic Plane
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DOI：
10.3847/1538-4357/abd556
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发表时间：
2021-03
期刊：
影响因子：
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通讯作者：
Hiroki Yokozuka;T. Oka;S. Takekawa;Y. Iwata;Shiho Tsujimoto
中科院分区：
文献类型：
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作者：
Hiroki Yokozuka;T. Oka;S. Takekawa;Y. Iwata;Shiho Tsujimoto
利用野边山射电天文台45 m望远镜观测的CO J = 1-0观测数据，对银河系盘部的宽速度宽度分子特征（BVF）进行了系统的研究。通过此次检索，确定了58个BVF。与红外和射电连续谱图像相比，36个BVF似乎具有红外和射电连续谱对应物，其中15个在文献中被描述为年轻恒星物体的分子流出。此外，21个BVF只有红外对应物，其中8个在文献中被描述为分子流出。其中一个BVF（CO 16.134-0.553）在其他波长上没有任何发光的对应物，这表明它可能是银河系中心高速致密云的模拟物。
We performed a systematic search for broad-velocity-width molecular features (BVFs) in the disk part of our Galaxy by using the CO J = 1–0 survey data obtained with the Nobeyama Radio Observatory 45 m telescope. From this search, 58 BVFs were identified. In comparisons with the infrared and radio continuum images, 36 BVFs appeared to have both infrared and radio continuum counterparts, and 15 of them are described as molecular outflows from young stellar objects in the literature. In addition, 21 BVFs have infrared counterparts only, and eight of them are described as molecular outflows in the literature. One BVF (CO 16.134–0.553) does not have any luminous counterpart in the other wavelengths, which suggests that it may be an analog of high-velocity compact clouds in the Galactic center.