Distances to molecular clouds at high galactic latitudes based on Gaia DR2
文献类型：期刊论文
| 作者 | Yan, Qing-Zeng1,2; Zhang, Bo2 ; Xu, Ye1; Guo, Sufen2,3; Macquart, Jean-Pierre4; Tang, Zheng-Hong2,3; Walsh, Andrew John5,6
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| 刊名 | ASTRONOMY & ASTROPHYSICS
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| 出版日期 | 2019-03-29 |
| 卷号 | 624页码:13 |
| ISSN号 | 1432-0746 |
| 关键词 | dust, extinction ISM: clouds |
| DOI | 10.1051/0004-6361/201834337 |
| 英文摘要 | We report the distances of molecular clouds at high Galactic latitudes (vertical bar b vertical bar > 10 degrees) derived from parallax and G-band extinction (A(G)) measurements in the second Gaia data release, Gaia DR2. Aided by Bayesian analyses, we determined distances by identifying the breakpoint in the extinction A(G) toward molecular clouds and using the extinction A(G) of Gaia stars around molecular clouds to confirm the breakpoint. We used nearby star-forming regions, such as Orion, Taurus, Cepheus, and Perseus, whose distances are well known to examine the reliability of our method. By comparing with previous results, we found that the molecular cloud distances derived from this method are reliable. The systematic error in the distances is approximately 5%. In total, 52 molecular clouds have well-determined distances, most of which are at high Galactic latitudes, and we provide reliable distances for 13 molecular clouds for the first time. |
| 资助项目 | Ministry of Science and Technology (MOST)[2017YFA0402701] ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; National Science Foundation of China[11673051] ; National Science Foundation of China[11873019] ; CAS[QYZDJ-SSW-SLH047] ; Key Laboratory for Radio Astronomy, CAS |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | EDP SCIENCES S A |
| WOS记录号 | WOS:000462844500005 |
| 源URL | [http://119.78.226.72/handle/331011/31871]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Yan, Qing-Zeng |
| 作者单位 | 1.Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquanlu, Beijing 100049, Peoples R China 4.Curtin Univ, Int Ctr Radio Astron Res, GPO Box U1987, Perth, WA 6845, Australia 5.Macquarie Univ, Dept Phys & Astron, Sydney, NSW 2109, Australia 6.Macquarie Univ, MQ Res Ctr Astron Astrophys & Astrophoton, Sydney, NSW 2109, Australia |
| 推荐引用方式 GB/T 7714 | Yan, Qing-Zeng,Zhang, Bo,Xu, Ye,et al. Distances to molecular clouds at high galactic latitudes based on Gaia DR2[J]. ASTRONOMY & ASTROPHYSICS,2019,624:13. |
| APA | Yan, Qing-Zeng.,Zhang, Bo.,Xu, Ye.,Guo, Sufen.,Macquart, Jean-Pierre.,...&Walsh, Andrew John.(2019).Distances to molecular clouds at high galactic latitudes based on Gaia DR2.ASTRONOMY & ASTROPHYSICS,624,13. |
| MLA | Yan, Qing-Zeng,et al."Distances to molecular clouds at high galactic latitudes based on Gaia DR2".ASTRONOMY & ASTROPHYSICS 624(2019):13. |
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来源：上海天文台
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