An Exposure Meter of Lijiang Fiber-fed High-Resolution Spectrograph | |
Yu XG(余晓光)2,3,4; Ji KF(季凯帆)3,4; Zhang XL(张西亮)3,4; Chang L(常亮)2,3,4; Cai YF(蔡云芳)3,4; Tan Y(覃瑛)2,3,4; Shang, Zhen-Hong1 | |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
2023-11-01 | |
卷号 | 23期号:11 |
关键词 | telescopes instrumentation: spectrographs instrumentation: photometers |
ISSN号 | 1674-4527 |
DOI | 10.1088/1674-4527/acf543 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | In 2016, an exposure meter was installed on the Lijiang Fiber-fed High-Resolution Spectrograph to monitor the coupling of starlight to the science fiber during observations. Based on it, we investigated a method to estimate the exposure flux of the CCD in real time by using the counts of the photomultiplier tubes (PMT) of the exposure meter, and developed a piece of software to optimize the control of the exposure time. First, by using flat -field lamp observations, we determined that there is a linear and proportional relationship between the total counts of the PMT and the exposure flux of the CCD. Second, using historical observations of different spectral types, the corresponding relational conversion factors were determined and obtained separately. Third, the method was validated using actual observation data, which showed that all values of the coefficient of determination were greater than 0.92. Finally, software was developed to display the counts of the PMT and the estimated exposure flux of the CCD in real-time during the observation, providing a visual reference for optimizing the exposure time control. |
学科主题 | 天文学 ; 天文学其他学科 ; 机械工程 ; 仪器仪表技术 ; 光学技术与仪器 ; 天文仪器 |
URL标识 | 查看原文 |
出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA |
资助项目 | We are grateful to the referee for useful suggestions that improved the manuscript, and we acknowledge the support of the Lijiang 2.4 m telescope staff. This work was funded by the National Natural Science Foundation of China (NSFC, Nos. 11803088, 12003068[11803088] ; We are grateful to the referee for useful suggestions that improved the manuscript, and we acknowledge the support of the Lijiang 2.4 m telescope staff. This work was funded by the National Natural Science Foundation of China (NSFC, Nos. 11803088, 12003068[12003068] ; We are grateful to the referee for useful suggestions that improved the manuscript, and we acknowledge the support of the Lijiang 2.4 m telescope staff. This work was funded by the National Natural Science Foundation of China (NSFC, Nos. 11803088, 12003068[12063002] ; National Natural Science Foundation of China (NSFC)[D020302] ; Civil Aerospace pre-research project ; China Manned Space Project[202001AU070077] ; Yunnan Science Foundation of China[M-0086] ; Sino-German Scientist Mobility Programme |
WOS关键词 | SYSTEM |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
WOS记录号 | WOS:001081792400001 |
资助机构 | We are grateful to the referee for useful suggestions that improved the manuscript, and we acknowledge the support of the Lijiang 2.4 m telescope staff. This work was funded by the National Natural Science Foundation of China (NSFC, Nos. 11803088, 12003068[11803088, 12003068, 12063002] ; National Natural Science Foundation of China (NSFC)[D020302] ; Civil Aerospace pre-research project ; China Manned Space Project[202001AU070077] ; Yunnan Science Foundation of China[M-0086] ; Sino-German Scientist Mobility Programme |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26349] |
专题 | 云南天文台_丽江天文观测站(南方基地) |
通讯作者 | Yu XG(余晓光); Chang L(常亮) |
作者单位 | 1.Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China 2.University of Chinese Academy of Sciences, Beijing 100049, China; 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China; yuxiaoguang@ynao.ac.cn, changliang@ynao.ac.cn; |
推荐引用方式 GB/T 7714 | Yu XG,Ji KF,Zhang XL,et al. An Exposure Meter of Lijiang Fiber-fed High-Resolution Spectrograph[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(11). |
APA | Yu XG.,Ji KF.,Zhang XL.,Chang L.,Cai YF.,...&Shang, Zhen-Hong.(2023).An Exposure Meter of Lijiang Fiber-fed High-Resolution Spectrograph.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(11). |
MLA | Yu XG,et al."An Exposure Meter of Lijiang Fiber-fed High-Resolution Spectrograph".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.11(2023). |
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