propertiesoftheuchiiregiong254nwanditsassociatedmolecularcloud
文献类型:期刊论文
作者 | Ai Mei; Zhu Ming; Xiao Li; Su Hongquan |
刊名 | researchinastronomyandastrophysics
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出版日期 | 2013 |
卷号 | 13期号:8页码:935 |
ISSN号 | 1674-4527 |
英文摘要 | Ultra compact HII (UCHII) G25.4NW is a bright IR source in the region of the inner Galaxy. New HI images from the Very Large Array Galactic Plane Survey show clear absorption features associated with the UCHII region up to 95 km s(-1), and there are no other absorptions up to the tangential velocity. This reveals that G25.4NW has a near-side distance of 5.7 kpc, and it is located in the region of the inner Galactic molecular ring. Using the new distance, the bolometric luminosity of G25.4NW is estimated as 10(5.6) L-circle dot, which corresponds to an O6 star. It contains 460 M-circle dot of ionized gas. A high-resolution (CO)-C-13 image from the Galactic Ring Survey reveals that G25.4NW is part of a more extended star-forming complex with about 10(4) M-circle dot of molecular gas. |
资助项目 | [National Natural Science Foundation of China] ; [National Basic Research Program of China (973 program)] ; [NAOC] ; [Chinese Academy of Sciences] |
语种 | 英语 |
源URL | [http://ir.bao.ac.cn/handle/114a11/53895] ![]() |
专题 | 中国科学院国家天文台 |
作者单位 | 中国科学院国家天文台 |
推荐引用方式 GB/T 7714 | Ai Mei,Zhu Ming,Xiao Li,et al. propertiesoftheuchiiregiong254nwanditsassociatedmolecularcloud[J]. researchinastronomyandastrophysics,2013,13(8):935. |
APA | Ai Mei,Zhu Ming,Xiao Li,&Su Hongquan.(2013).propertiesoftheuchiiregiong254nwanditsassociatedmolecularcloud.researchinastronomyandastrophysics,13(8),935. |
MLA | Ai Mei,et al."propertiesoftheuchiiregiong254nwanditsassociatedmolecularcloud".researchinastronomyandastrophysics 13.8(2013):935. |
入库方式: OAI收割
来源:国家天文台
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