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Atmospheric dispersion corrector for the Large Sky Area Multi-Object Fibre Spectroscopic Telescope
Ding-qiang Su; Peng Jia; Genrong Liu
2012-04
Source PublicationMonthly Notices of the Royal Astronomical Society
Volume419Issue:4Pages:3406–3413
Abstract
The Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) is the largest,
wide field-of-view (FOV) telescope (with an aperture of 4 m), and it is equipped with the
highest number (4000) of optical fibres in theworld. For the LAMOSTNorth and the LAMOST South, the FOVs are 5oand 3.5o, respectively, and the linear diameters are 1.75 m and 1.22 m, respectively. A new type of atmospheric dispersion corrector (ADC) is put forward and designed for LAMOST. It is a segmented lens, which consists of many lens–prism strips. Although it is very large, its thickness is only 12 mm. Thus, the difficulty of obtaining a large optical glass is avoided, and the aberration caused by the ADC is small. By moving this segmented lens along the optical axis, different dispersions can be obtained. We discuss the effects of ADC’s slits on the diffraction energy distribution and on the obstruction of light.We calculate and discuss the aberration caused by the ADC. All these results are acceptable. Such an ADC could also be used for other optical fibre spectroscopic telescopes, especially those which a have very large FOV.
KeywordAtmospheric Effects Spectrographs Spectroscopic Telescopes Surveys
Subject Area郭守敬望远镜(lamost) ; 天文光学设计
WOS IDWOS:000298920600052
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/642
Collection期刊论文
Recommended Citation
GB/T 7714
Ding-qiang Su,Peng Jia,Genrong Liu. Atmospheric dispersion corrector for the Large Sky Area Multi-Object Fibre Spectroscopic Telescope[J]. Monthly Notices of the Royal Astronomical Society,2012,419(4):3406–3413.
APA Ding-qiang Su,Peng Jia,&Genrong Liu.(2012).Atmospheric dispersion corrector for the Large Sky Area Multi-Object Fibre Spectroscopic Telescope.Monthly Notices of the Royal Astronomical Society,419(4),3406–3413.
MLA Ding-qiang Su,et al."Atmospheric dispersion corrector for the Large Sky Area Multi-Object Fibre Spectroscopic Telescope".Monthly Notices of the Royal Astronomical Society 419.4(2012):3406–3413.
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