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题名: The catalogues and mid-infrared environment of interstellar OH masers
作者: Qiao, Haihua1, 2, 3, 4; Li, Juan1, 4; Shen, Zhiqiang1, 3, 4; Chen, Xi1, 3, 4; Zheng, Xingwu5, 6
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2014-07-11
卷号: 441, 期号:4, 页码:3137-3147
关键词: masers ; methods: statistical ; stars: formation ; ISM: bubbles
DOI: 10.1093/mnras/stu776
文章类型: Article
英文摘要: Data for a number of OH maser lines have been collected from surveys. The positions are compared with recent mid-infrared (MIR) surveys such as the Spitzer Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) and Wide-field Infrared Survey Explorer (WISE) surveys, restricting the comparison to point sources. The colours and intensities of the IR sources are compared. There are many 18-cm OH masers, but far fewer in lines arising from higher energy levels. We also make a comparison with 5-cm Class II methanol masers. We have divided the results into three subsamples: those associated with OH masers only, those associated with OH masers and Class II methanol masers and those associated with Class II methanol masers only. There are no obvious differences in the colour-colour or colour-magnitude results for the GLIMPSE point sources. However, according to the results from the WISE 22-mu m survey, the sources associated with OH masers are brighter than those associated with methanol masers. We interpret the presence of OH and methanol masers as marking the locations of regions where stars are forming. The OH masers are located on the borders of sharp features found in the IR. These are referred to as bubbles. If the OH masers mark the positions of protostars, the result provides indirect evidence for triggered star formation caused by the expansion of the bubbles.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: STAR-FORMING REGIONS ; 6-CM EXCITED OH ; BUBBLING GALACTIC DISK ; FAR-INFRARED SOURCES ; PHYSICAL CONDITIONS ; HYDROXYL MASERS ; METHANOL MASERS ; H2O MASERS ; MILKY-WAY ; 6.035 GHZ
收录类别: SCI
语种: 英语
WOS记录号: WOS:000338764700025
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内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15757
Appears in Collections:毫米波和亚毫米波技术实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, Shanghai 20030, Peoples R China
4.Chinese Acad Sci, Key Lab Radio Astron, Shanghai 200030, Peoples R China
5.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
6.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China
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