First observations of the water masers with the Urumqi 25m radio telescope
文献类型：期刊论文
| 作者 | Zheng, XW; Esimbek, J ; Zhou, JJ
|
| 刊名 | SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
 |
| 出版日期 | 2001-10-01 |
| 卷号 | 44期号:10页码:1356-1360 |
| ISSN号 | 1006-9283 |
| 关键词 | astronomical technique-calibration of the line observation HII regions-ISM : masers |
| 英文摘要 | A new radio spectral receiving system has been installed on the 25 rn radio telescope of the Urumqi Astronomical Observatory. The back end is a surface acoustic wave chirp transform spectrometer (SAW CZT), used for the first time in radio astronomy. The calibration of the line observations has carefully been investigated for the new-type spectrometer. In order to test the feasibility of the prototype spectrometer, we observed water maser emission from a number of known Galactic sources. We describe the observed spectra of W49N, W3(OH), 2248 + 600 and 1909 + 090. We found that W49N spectrum showed high-velocity features ranging from - 330 to 146 km s(-1). In comparison with the spectra observed by Medicina, the feature at the LSR velocity - 52 km s(-1) in the W3(OH) presented the rapid variation in flux density. |
| 学科主题 | 恒星和恒星物理 |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Mathematics, Applied ; Mathematics |
| 研究领域[WOS] | Mathematics |
| 资助信息 | National Natural Science Foundation of China (Grant Nos. 10073004);the Joint Laboratory of Radio Astronomy,the Chinese Academy of Science |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000172008800016 |
| 公开日期 | 2013-03-06 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/111]  |
| 专题 | 恒星形成与演化研究团组 新疆天文台_射电天文研究室 |
| 作者单位 | 1.Nanjing Univ, Dept Astron, Nanjing, Peoples R China 2.Chinese Acad Sci, Urumqi Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, XW,Esimbek, J,Zhou, JJ. First observations of the water masers with the Urumqi 25m radio telescope[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,2001,44(10):1356-1360. |
| APA | Zheng, XW,Esimbek, J,&Zhou, JJ.(2001).First observations of the water masers with the Urumqi 25m radio telescope.SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,44(10),1356-1360. |
| MLA | Zheng, XW,et al."First observations of the water masers with the Urumqi 25m radio telescope".SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY 44.10(2001):1356-1360. |
入库方式： OAI收割
来源：新疆天文台
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