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Observation of water masers and a study of their time variation

文献类型：期刊论文

作者Wu, YF; Si, JR; Wang, JZ; Jiang, DR; Huang, XY
刊名CHINESE ASTRONOMY AND ASTROPHYSICS
出版日期1999-10-01
卷号23期号:4页码:454-462
关键词interstellar medium water maser infrared source
英文摘要Using the 25-m telescope of Shanghai Observatory, Joint Radio Astronomy Laboratory, 19 known maser sources and 20 candidates in H II regions were surveyed for water vapour maser emission at 22.2 GHz. 21 sources were detected, of which two are for the first time. Combining with some previous data, the time variations in the flux and velocity are obtained and discussed. Time variation in the peak flux density is common and is of two types, a change in the intensity of the same peak, and a swapping-over of two peaks. The corresponding IRAS sources were identified and the relation between the maser emission and the infrared parameters discussed. It is shown that maser production rate is more sensitive to the infrared flux intensity than the infrared colour distribution.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]GALAXY ; ATLAS
收录类别SCI
语种英语
WOS记录号WOS:000084530700007
源URL[http://119.78.226.72/handle/331011/28311]  
专题上海天文台_星系宇宙学重点实验室
作者单位1.Peking Univ, Dept Geophys, Beijing 100871, Peoples R China
2.CAS Peking Univ, Beijing Joint Astrophys Ctr, Beijing 100871, Peoples R China
3.Jiao Tong Univ, Dept Appl Phys, Shanghai 200030, Peoples R China
4.Chinese Acad Sci, Beijing Astron Observ, Beijing 100080, Peoples R China
5.Chinese Acad Sci, Shanghai Observ, Shanghai 200030, Peoples R China
推荐引用方式
GB/T 7714		 Wu, YF,Si, JR,Wang, JZ,et al. Observation of water masers and a study of their time variation[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,1999,23(4):454-462.
APA Wu, YF,Si, JR,Wang, JZ,Jiang, DR,&Huang, XY.(1999).Observation of water masers and a study of their time variation.CHINESE ASTRONOMY AND ASTROPHYSICS,23(4),454-462.
MLA Wu, YF,et al."Observation of water masers and a study of their time variation".CHINESE ASTRONOMY AND ASTROPHYSICS 23.4(1999):454-462.

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来源：上海天文台

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