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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
发表期刊Monthly Notices of the Royal Astronomical Society
期号460页码:2286–2295
摘要
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.
关键词Atmospheric Effects – Techniques High Angular Resolution – Techniques Miscellaneous – Telescopes – Surveys
学科领域天文技术与方法
语种英语
文献类型期刊论文
条目标识符http://ir.niaot.ac.cn/handle/114a32/1345
专题期刊论文
作者单位1.南京大学天文与空间学院
2.南京天文光学技术研究所
推荐引用方式
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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