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arXiv · 1805.00620

Investigating the Efficiency of the Beijing Faint Object Spectrograph and Camera (BFOSC) of the Xinglong 2.16-m Reflector

Yong Zhao·Zhou Fan·Juanjuan Ren·Liang Ge·Xiaoming Zhang·Hongbin Li·Huijuan Wang·Jianfeng Wang·Peng Qiu·Xiaojun Jiang
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Abstract

The Beijing Faint Object Spectrograph and Camera (BFOSC) is one of the most important instruments of the 2.16-m telescope of the Xinglong Observatory. Every year there are ~ 20 SCI-papers published based on the observational data of this telescope. In this work, we have systemically measured the total efficiency of the BFOSC of the 2.16-m reflector, based on the observations of two ESO flux standard stars. We have obtained the total efficiencies of the BFOSC instrument of different grisms with various slit widths in almost all ranges, and analysed the factors which effect the efficiency of telescope and spectrograph. For the astronomical observers, the result will be useful for them to select a suitable slit width, depending on their scientific goals and weather conditions during the observation; For the technicians, the result will help them systemically find out the real efficiency of telescope and spectrograph, and further to improve the total efficiency and observing capacity of the telescope technically.

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Yong Zhao, Zhou Fan, Juanjuan Ren, Liang Ge, Xiaoming Zhang, Hongbin Li, Huijuan Wang, Jianfeng Wang, Peng Qiu, Xiaojun Jiang. 2018-05-02. Investigating the Efficiency of the Beijing Faint Object Spectrograph and Camera (BFOSC) of the Xinglong 2.16-m Reflector. https://doi.org/10.1088/1674-4527/18/9/110

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