Optical system research of multi-object fiber spectroscopic survey telescope | |
Bai H(白华); Su DQ(苏定强); Liang M(梁明); Yuan XY(袁祥岩); Cui XQ(崔向群) | |
2021-06 | |
Source Publication | Research in As tronomy and As trophysics |
Volume | 21Issue:6Pages:71-78 |
Abstract | In the first part of this paper,four different Cassegrain optical systems with their correctors are designed and studied for multi-object fiber slit spectroscopic survey.The aperture in 6.5 m and field of view 3°are taken for these optical systems.Assuming observation wavelength range is 0.365–0.95μm,the maximum zenith distance for observing is 60°,the maximum diameter of these lenses is 1.66 m,the altitude of the telescope site is 2500 m,two correctors are composed of 4-piece lenses and the other two are 5-piece lenses.The results obtained are:f-ratio about 3.7,the image quality for all four systems with EE80D≤0.60′′,the linear diameter of the focal surface is about 1.2 m and 11 000 fibers can be set on it.Considering the limit of size of fused silica and optical glass,the maximum diameter for lens is about 1.7 m.Such a 6.5 m telescope is about the largest one if using the above correctors.Considering the multiobject spectroscopic survey is greatly important,we also studied some telescope optical systems having their aperture near or larger than 10 m used for the multi-object fiber spectroscopic survey.Such ideas are introduced in the last section of this paper |
Keyword | telescopes techniques: miscellaneous techniques: spectroscopic methods: miscellaneous surveys instrumentation: miscellaneous |
Subject Area | 天文技术与方法 |
Document Type | 期刊论文 |
Identifier | http://ir.niaot.ac.cn/handle/114a32/1950 |
Collection | 期刊论文 中国科学院南京天文光学技术研究所知识成果 |
Affiliation | 南京天文光学技术研究所 |
Recommended Citation GB/T 7714 | Bai H,Su DQ,Liang M,et al. Optical system research of multi-object fiber spectroscopic survey telescope[J]. Research in As tronomy and As trophysics,2021,21(6):71-78. |
APA | Bai H,Su DQ,Liang M,Yuan XY,&Cui XQ.(2021).Optical system research of multi-object fiber spectroscopic survey telescope.Research in As tronomy and As trophysics,21(6),71-78. |
MLA | Bai H,et al."Optical system research of multi-object fiber spectroscopic survey telescope".Research in As tronomy and As trophysics 21.6(2021):71-78. |
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