Measuring fiber position errors from spectral data
文献类型：期刊论文
| 作者 | Chen, Jian-Jun1,2,3 ; Bai, Zhong-Rui1,2,3; Luo, A-Li1,2; Zhao, Yong-Heng1,2; Chen Jianjun; Zhao Yongheng; Bai Zhongrui; Luo Ali
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2015-04-01 |
| 卷号 | 15期号:4页码:608-616 |
| 关键词 | techniques: multi-fiber fiber spectroscopy spectrophotometry |
| 英文摘要 | Precise fiber positioning is crucial to a wide field, multi-fiber spectroscopic survey such as the Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST). Nowadays, most position error measurements are based on CCD photographic and image processing techniques. These methods only work for measuring errors orthogonal to the telescope optical axis, but there are also errors that lie parallel to the optical axis of the telescope, such as defocusing, and errors caused by the existing deviation angle between the optical axes of a fiber and the telescope. Directly measuring the two latter types of position errors is difficult for an individual fiber, especially during observations. Possible sources of fiber position errors are discussed in brief for LAMOST. By constructing a model of magnitude loss due to the fiber position error for a point source, we propose an indirect method to calculate both the total and systematic position errors for each individual fiber from spectral data. Restrictions and applications of this method are also discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000352130400012 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5753]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jian-Jun,Bai, Zhong-Rui,Luo, A-Li,et al. Measuring fiber position errors from spectral data[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(4):608-616. |
| APA | Chen, Jian-Jun.,Bai, Zhong-Rui.,Luo, A-Li.,Zhao, Yong-Heng.,Chen Jianjun.,...&Luo Ali.(2015).Measuring fiber position errors from spectral data.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(4),608-616. |
| MLA | Chen, Jian-Jun,et al."Measuring fiber position errors from spectral data".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.4(2015):608-616. |
入库方式： OAI收割
来源：国家天文台
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