Atmospheric dispersion corrector for the Large Sky Area Multi-Object Fibre Spectroscopic Telescope | |
Ding-qiang Su; Peng Jia; Genrong Liu | |
2012-04 | |
Source Publication | Monthly Notices of the Royal Astronomical Society |
Volume | 419Issue: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. |
Keyword | Atmospheric Effects Spectrographs Spectroscopic Telescopes Surveys |
Subject Area | 郭守敬望远镜(lamost) ; 天文光学设计 |
WOS ID | WOS:000298920600052 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://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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