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Title:
Introduction on Chinese 12-m optical/infrared telescope(LOT)
Author: Cui, XiangQun(崔向群)1,2; Zhu, YongTian(朱永田)1,2; Su, DingQiang(苏定强)1,3; Yuan, XiangYan(袁祥岩)1,2; Hu, ZhongWen(胡中文)1,2; Bai, Hua(白华)1,2; Gu, BoZhong(顾伯忠)1,2
Issued Date: 2018-07-06
Conference Name: SPIE Ground-based and Airborne Telescopes VII(Vol.10700)
Conference Date: 2018-6-10
Conference Place: Austin, Texas, United States
Keyword: telescope ; high angular resolution ; spectrograph ; survey ; GLAO
Subject: 天文技术与方法
English Abstract:
Except for the spectroscopic survey telescope LAMOST, there are only two 2m class general purpose telescopes for precision observation in China (2.16m in Xinglong and 2.4m in Lijiang). Chinese astronomical community unanimously agrees that a 10m class large diameter general purpose optical/infrared telescope is urgently needed in China for a wide
range of scientific research. The configuration for LOT with primary aperture 12m has been selected by Chinese government for the Thirteen-five-years plan in July, 2016. The concept design introduced here has been approved by Chinese astronomical community and Chinese Academy of Sciences in Dec. 2017, and submitted into the formal funding procedure of Chinese government. For quite a long time, China will very likely have only one 10m class telescope, therefore LOT should be a general-purpose telescope including multi-foci. The Nasmyth focus, prime focus, Cassegrain focus and coudé focus have been considered or reserved. Also, LOT will closely combine with the development of new technologies, such as AO、GLAO、fiber and instrument related new technologies, to make it has powerful capability for the frontier sciences. The four-mirror Nasmyth system, optimized according to the GLAO requirements, has a f-ratio about 14 and field of view 14 arecmin with excellent image quality. Some off-axis four-mirror Nasmyth optical systems are also presented in this paper. The primary focus system has a f-ratio 2 and 1.5degree field of
view with 80% light energy encircled in 0.5 arecsec, which will let LOT complementary with the coming 30m-class telescopes. A double–layer Nasmyth platforms are proposed to accommodate more instruments, such as the wide field imaging spectrograph, broad band medium resolution spectrograph, high resolution spectrograph and multi-object fiber spectrographs and so on. Not all optical systems will be constructed in the same time,which will be in stages depending on the science and funding situation.
Source: Ground-based and Airborne Telescopes VII
Language: 英语
Content Type: 会议论文
URI: http://ir.niaot.ac.cn/handle/114a32/1554
Appears in Collections:中科院南京天光所知识成果_会议论文
望远镜新技术研究室_会议论文
天文光谱和高分辨成像技术研究室_会议论文
望远镜工程中心_会议论文

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description.institution: 1.南京天文光学技术研究所
2.天文光学技术重点实验室
3.南京大学

Recommended Citation:
Xiangqun Cui,Yongtian Zhu,Ding-qiang Su,et al. Introduction on Chinese 12-m optical/infrared telescope(LOT)[C]. 见:SPIE Ground-based and Airborne Telescopes VII(Vol.10700). Austin, Texas, United States. 2018-6-10.
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文件名: Introduction on Chinese 12m optical_infrared telescope (LOT).pdf
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