Upgraded photometric system on the 85-cm telescope at Xinglong station  

作　　者：Chun-Hai Bai Jian-Ning Fu Tao-Ran Li Zhou Fan Jiang-Hua Wu Yong Zhao Xian-Qun Zeng Wen-Zhao Zhang Peng Qiu Guo-Jie Feng Xiao-Jun Jiang 

机构地区：[1]National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Xinjiang Astronomical Observatory,Chinese Academy of Sciences,Urumqi 830011,China [4]Department of Astronomy,Beijing Normal University,Beijing 100875,China

出　　处：《Research in Astronomy and Astrophysics》2018年第9期21-30,共10页天文和天体物理学研究（英文版）

基　　金：support from the staff at the Xinglong 85-cm telescope;support from the National Natural Science Foundation of China(NSFC)through grant 11673003;the National Basic Research Program of China(973 program,2014CB845700);partially supported by the Open Project Program of the Key Laboratory of Optical Astronomy(National Astronomical Observatories);NSFC under Grant Nos.11403088 and 11273051(Xinjiang Astronomical Observatory);Chinese Academy of Sciences and Department of Astronomy,Beijing Normal University

摘　　要：The 85-cm telescope at Xinglong station is a prime focus system that operates well with high science outputs. The telescope has been upgraded since 2014 with a new corrector, and new filters and camera, which are provided by Beijing Normal University. The filter set is the Johnson-Cousins UBV RI system. We report the test results of the new system including bias, dark current, linearity, gain and readout noise of the CCD camera. Then we derive accurate instrumental calibration coefficients in UBV RI bands with Landolt standard stars during photometric nights. Finally, we give the limiting magnitudes with various exposure times and signal-to-noise ratios for observers as references.The 85-cm telescope at Xinglong station is a prime focus system that operates well with high science outputs. The telescope has been upgraded since 2014 with a new corrector, and new filters and camera, which are provided by Beijing Normal University. The filter set is the Johnson-Cousins UBV RI system. We report the test results of the new system including bias, dark current, linearity, gain and readout noise of the CCD camera. Then we derive accurate instrumental calibration coefficients in UBV RI bands with Landolt standard stars during photometric nights. Finally, we give the limiting magnitudes with various exposure times and signal-to-noise ratios for observers as references.

关 键 词：TELESCOPE INSTRUMENTATION CCD photometry 

分 类 号：P111[天文地球—天文学]