The wide-field photometric system of the Nanshan One-meter Telescope

作者：Chun-Hai Bai,Guo-Jie Feng,Xuan Zhang,Hu-Biao Niu,Abdusamatjan Eskandar,Guang-Xin Pu,Shu-Guo Ma,Jin-Zhong Liu,Xiao-Jun Jiang,Lu Ma,Ali Esamdin,Na Wang

摘要：The Nanshan One-meter Wide-field Telescope is a prime focus system that is located at Nanshan Station of Xinjiang Astronomical Observatories.The field of view was designed to 1.5°× 1.5°,and the Johnson-Cousins UBVRI system was chosen as the main filter set.The telescope has been providing observation services for astronomers since September 2013.Variable source searching and time-domain surveys are the main scientific goals.The system’s test results are reported including linearity,dark current,bias,readout noise and gain of the CCD camera.The accurate instrumental calibration coefficients in UBVRI bands were driven with Landolt standard stars during photometric nights.Finally,the limiting magnitudes are given with signal-to-noise ratios and various exposure times for observers.

发文机构：Xinjiang Astronomical Observatories Key Laboratory of Optical Astronomy

关键词：TELESCOPEFILTERCCDphotometry

分类号： P15[天文地球—天文学]