中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Yunnan-Hong Kong wide field photometric survey

文献类型:期刊论文

作者Gu SH(顾盛宏)2,3,4; Wang XB(王晓彬)2,3,4; Yeung, Bill1; Ng, Eric1; Yu, Kamfung1; Bai JM(白金明)3,4; Fan YF(范玉峰)3,4; Sun LL(孙磊磊)3,4; Xiang Y(项越)3,4; Cao DT(曹东涛)3,4
刊名ASTRONOMISCHE NACHRICHTEN
出版日期2022-11
ISSN号0004-6337
关键词asteroids planetary systems stars variables general surveys techniques photometric
DOI10.1002/asna.20224022
产权排序第1完成单位
文献子类Article; Early Access
英文摘要

We are running a wide field photometric survey under the collaboration between Yunnan Observatories and Hong Kong Astronomical Society with a Centurion 18-inch telescope at the Lijiang station of Yunnan Observatories, China. Its scientific goals are discovering new transiting exoplanetary systems and other types of variable stars, and studying asteroids of the solar system. The survey was designed to monitor several fixed sky areas through time series photometry with short cadences. Since 2016, numerous observing data have been accumulated and reduced by means of dedicated pipelines to deliver the light curves for tens of thousands objects, which are cross-matched through the Carlsberg Meridian Catalog 15 or USNO-B1.0 catalog. Systematic errors and trends that existed in the raw photometric results are simulated through selected reference stars and then removed to improve signal-to-noise ratios of the light curves, which is crucial to detect weak signals like exoplanet transits and other variable stars of low amplitudes in brightness variations. The final data products own the photometric precision better than 0.01 magnitude for stars brighter than 13.8 magnitude in the V band. By means of generalized Lomb-Scargle, phase dispersion minimization, and box-fitting least squares techniques, we have already identified about a thousand of variable stars from the survey, including transiting exoplanet candidates, spotted stars, eclipsing binaries, pulsating stars, and so on. In addition, we have also captured around a thousand of asteroids of the solar system in the survey fields and produced their light curves due to spins.

学科主题天文学 ; 天体物理学 ; 实测天体物理学 ; 恒星与银河系 ; 恒星天文学
URL标识查看原文
出版地POSTFACH 101161, 69451 WEINHEIM, GERMANY
WOS关键词ALGORITHM
资助项目National Natural Science Foundation of China[12003063] ; National Natural Science Foundation of China[11473066] ; National Natural Science Foundation of China[10873031] ; National Natural Science Foundation of China[U1531121] ; China Manned Space Project[CMS-CSST-2021-B08] ; China Manned Space Project[CMS-CSST-2021-B07]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000877925100001
资助机构National Natural Science Foundation of China[12003063, 11473066, 10873031, U1531121] ; China Manned Space Project[CMS-CSST-2021-B08, CMS-CSST-2021-B07]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/25633]  
专题云南天文台_系外行星研究组
云南天文台_丽江天文观测站(南方基地)
云南天文台_中国科学院天体结构与演化重点实验室
通讯作者Wang XB(王晓彬)
作者单位1.Observing group, Hong Kong Astronomical Society, Hong Kong, China
2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing, China;
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, China;
4.Yunnan Observatories, Chinese Academy of Sciences, Kunming, China;
推荐引用方式
GB/T 7714
Gu SH,Wang XB,Yeung, Bill,et al. Yunnan-Hong Kong wide field photometric survey[J]. ASTRONOMISCHE NACHRICHTEN,2022.
APA Gu SH.,Wang XB.,Yeung, Bill.,Ng, Eric.,Yu, Kamfung.,...&Liu YS.(2022).Yunnan-Hong Kong wide field photometric survey.ASTRONOMISCHE NACHRICHTEN.
MLA Gu SH,et al."Yunnan-Hong Kong wide field photometric survey".ASTRONOMISCHE NACHRICHTEN (2022).

入库方式: OAI收割

来源:云南天文台

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