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The Correlation Between Dust and Gas Contents in Molecular Clouds

文献类型：期刊论文

作者Li RZ(李睿智)2,3,4; Chen, Bing-Qiu1; Li, Guang-Xing1; Wang BT(王柏廷)2,3,4; Ren, Hao-Ming2; Guo, Qi-Ning2
刊名ASTRONOMICAL JOURNAL
出版日期2024-11-01
卷号168期号:5
ISSN号0004-6256
DOI10.3847/1538-3881/ad77a3
产权排序第1完成单位
文献子类Article
英文摘要Molecular clouds are regions of dense gas and dust in space where new stars and planets are born. There is a strong correlation between the distribution of dust and molecular gas in molecular clouds. The present work focuses on the three-dimensional morphological comparisons between dust and gas in 567 molecular clouds identified in a previously published catalog. We confirm a sample of 112 molecular clouds, where the cloud morphology based on CO observations and dust observations displays good overall consistency. There are up to 334 molecular clouds whose dust distribution might be related to the distribution of gas. We are unable to find gas structures that correlate with the shape of the dust distribution in 24 molecular clouds. For the 112 molecular clouds where the dust distribution correlates very well with the distribution of gas, we use CO observational data to measure the physical properties of these molecular clouds and compare them with the results derived from dust, exploring the correlation between gas and dust in the molecular clouds. We found that the gas and dust in the molecular clouds have a fairly good linear relationship, with a gas-to-dust ratio of GDR=(2.80-0.34+0.37)x1021cm-2mag-1 . The ratio varies considerably among different molecular clouds. We measured the scale height of dust-CO clouds exhibiting strong correlations, finding hZ=43.3-3.5+4.0 pc.
学科主题天文学 ; 星系与宇宙学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词CO-DARK GAS ; LARGE CATALOG ; MILKY-WAY ; ACCURATE DISTANCES ; INTERSTELLAR DUST ; CONVERSION FACTOR ; SOLAR NEIGHBORHOOD ; FORMATION HISTORY ; BILLION STARS ; H-I
资助项目Yunnan University (YNU)https://doi.org/10.13039/501100007839[2019YFA0405500]; National Key R&D Program of China[12173034]; National Key R&D Program of China[12322304]; National Natural Science Foundation of China[202010673028]; Innovation and Entrepreneurship Training Projects for College Student of Yunnan University[C619300A034]; Yunnan University[CMS-CSST-2021-A09]; Yunnan University[CMS-CSST-2021-A08]; Yunnan University[CMS-CSST-2021-B03]; China Manned Space Project
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001341348600001
出版者IOP Publishing Ltd
资助机构Yunnan University (YNU)https://doi.org/10.13039/501100007839[2019YFA0405500] ; National Key R&D Program of China[12173034, 12322304] ; National Natural Science Foundation of China[202010673028] ; Innovation and Entrepreneurship Training Projects for College Student of Yunnan University[C619300A034] ; Yunnan University[CMS-CSST-2021-A09, CMS-CSST-2021-A08, CMS-CSST-2021-B03] ; China Manned Space Project
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27662]  
专题星系类星体研究组
作者单位1.South-Western Institute for Astronomy Research, Yunnan University, Kunming 650504, People's Republic of China; bchen@ynu.edu.cn, gxli@ynu.edu.cn
2.Department of Astronomy, Yunnan University, Kunming 650504, People's Republic of China;
3.University of Chinese Academy of Sciences, Beijing 101408, People's Republic of China;
4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China;
推荐引用方式
GB/T 7714		 Li RZ,Chen, Bing-Qiu,Li, Guang-Xing,et al. The Correlation Between Dust and Gas Contents in Molecular Clouds[J]. ASTRONOMICAL JOURNAL,2024,168(5).
APA 李睿智,Chen, Bing-Qiu,Li, Guang-Xing,王柏廷,Ren, Hao-Ming,&Guo, Qi-Ning.(2024).The Correlation Between Dust and Gas Contents in Molecular Clouds.ASTRONOMICAL JOURNAL,168(5).
MLA 李睿智,et al."The Correlation Between Dust and Gas Contents in Molecular Clouds".ASTRONOMICAL JOURNAL 168.5(2024).

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