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A suggested 12-m telescope optical system configuration for China
Ding-qiang Su1,2; Ming Liang2; Xiangyan Yuan2; Hua Bai2; Xiangqun Cui2
2016-05
Source PublicationMonthly Notices of the Royal Astronomical Society
Issue460Pages:2286–2295
Abstract
This is an optical/infrared telescope. It is a general purpose telescope. A segmented primary
mirror is adopted with diameter 12 m and f-ratio 1.6. This telescope has prime focus,
Cassegrain, Nasmyth and coud´e systems. The prime focus system has a 1.◦5 field-of-view
corrector with excellent image quality.

It will be used for multi-object fibre spectroscopic observation and CCD photography. In this 12-m telescope, all systems except the prime focus system share the same secondary mirror; the Nasmyth and coud´e systems are formed byadding relay mirrors; and the method of moving a secondary mirror is used to enhance image quality.

All these features originate from the innovative optical system of the Chinese 2.16-m telescope. At the Cassegrain focus, a dark object spectrograph, for example, can be installed
without any corrector; and in case a field of view is needed, a corrector may be added. Both
the Nasmyth and coud´e systems have exceptionally excellent image quality and the exchange between them occurs very conveniently. Many instruments in visible and infrared wavebands, some with an adaptive optics system, will be installed at the Nasmyth platform.

Coud´e system will be used for interferometry and for those instruments which require high stability. This configuration has a nearly full range of systems but it is not complex, and it can even be adopted by 20–40-m class telescopes.
KeywordAtmospheric Effects – Techniques High Angular Resolution – Techniques Miscellaneous – Telescopes – Surveys
Subject Area天文技术与方法
Language英语
Document Type期刊论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/1345
Collection中国科学院南京天文光学技术研究所_期刊论文
望远镜新技术研究室_期刊论文
Affiliation1.南京大学天文与空间学院
2.南京天文光学技术研究所
Recommended Citation
GB/T 7714
Ding-qiang Su,Ming Liang,Xiangyan Yuan,et al. A suggested 12-m telescope optical system configuration for China[J]. Monthly Notices of the Royal Astronomical Society,2016(460):2286–2295.
APA Ding-qiang Su,Ming Liang,Xiangyan Yuan,Hua Bai,&Xiangqun Cui.(2016).A suggested 12-m telescope optical system configuration for China.Monthly Notices of the Royal Astronomical Society(460),2286–2295.
MLA Ding-qiang Su,et al."A suggested 12-m telescope optical system configuration for China".Monthly Notices of the Royal Astronomical Society .460(2016):2286–2295.
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