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The LAMOST low resolution spectrograph Stability Performance
Yonghui Hou; Lei Wang; Zhongwen Hu; Jianing Wang; Zhen Tang; Mingda Jiang; Yongtian Zhu
2012-09-24
会议录名称Ground-based and Airborne Instrumentation for Astronomy IV
卷号8446
期号8446
页码Vol.8446 60-1-6
会议日期2012-7-1
会议地点Amsterdam, Netherlands
会议主办者The International Society for Optical Engineering
出版者SPIE
摘要
One of the Large Sky Area Multi-Object Spectroscopic Telescope (LAMOST) scientific requirements require the ability of the low resolution spectrograph(LRS) to measure velocities to a accuracy of 4km/s over the entire 5 degree field in 2 hours objects observation. This requirement results in the specification of image movement less than 0.6μm/hours (0.05pixl/hours corresponding to the science detector).There are 16 spectrographs for LAMOST telescope, so we expect the design aspects of the instrument directed towards achieving the stability goal. In this paper we present the last design aspects of the instrument which enable meeting the 4km/s requirement, and the recent test results of the LRS’s Stability Performance. The test results show that the stability performance of LAMOST-LRS can meet the the stability goal, the image shift along the direction of dispersion is not influenced by the external factors, and the image shift along vertical dispersion direction meet the technical requirements when the environmental temperature of the spectrograph room is in control.
关键词Astronomical Instrumentation Lamost Spectrograph Stability
学科领域郭守敬望远镜(lamost) ; 天文光谱仪
文献类型会议论文
条目标识符http://ir.niaot.ac.cn/handle/114a32/682
专题会议论文
推荐引用方式
GB/T 7714
Yonghui Hou,Lei Wang,Zhongwen Hu,et al. The LAMOST low resolution spectrograph Stability Performance[C]:SPIE,2012:Vol.8446 60-1-6.
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