Status of the first Antarctic Survey Telescopes for Dome A | |
Zhengyang Li ; Xiangyan Yuan ; Xiangqun Cui ; Daxing Wang ; Xuefei Gong ; Fujia Du ; Yi Zhang ; Yi Hu ; Haikun Wen ; Xiaoyan Li ; Lingzhe Xu ; Zhaohui Shang ; Lifan Wang | |
2012-09-17 | |
会议日期 | 2012-7-1 |
会议地点 | Amsterdam, Netherlands |
关键词 | Astronomical site Dome A Antarctica Survey Telescope Automatic observations |
卷号 | 8444 |
期号 | 8444 |
页码 | Vol.8444 1O-1-7 |
英文摘要 |
The preliminary site testing carried out since the beginning of 2008 shows the Antarctic Dome A is very likely to be the best astronomical site on earth even better than Dome C and suitable for observations ranging from optical wavelength to infrared and sub-millimeter. After the Chinese Small Telescope Array (CSTAR) which is composed of four small fixed telescopes with diameter of 145mm and mounted on Dome A in 2008 for site testing and variable star monitor, three Antarctic Survey Telescopes (AST3) were proposed for observations of supernovas and extrasolar planets searching. AST3 is composed of 3 large field of view catadioptric telescopes with 500mm entrance diameter and G, R, I filter for each. The telescopes can point and track autonomously along with a light and foldable dome to keep the snow and icing build up. A precise auto-focusing mechanism is designed to make the telescope work at the right focus under large temperature difference. The control and tracking components and assembly were successfully tested at from normal temperature down to -80 Celsius degree. Testing observations of the first AST3 showed it can deliver good and uniform images over the field of 8 square degrees. The first telescope was successfully mounted on Dome A in Jan. 2012 and the automatic observations were started from Mar. 2012. |
会议主办者 | The International Society for Optical Engineering |
会议录 | Ground-based and Airborne Telescopes IV |
会议录出版者 | SPIE |
学科主题 | 南极望远镜 |
内容类型 | 会议论文 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/645] |
专题 | 南京天文光学技术研究所_中科院南京天光所知识成果_会议论文 南京天文光学技术研究所_南极天文技术中心_会议论文 |
推荐引用方式 GB/T 7714 | Zhengyang Li,Xiangyan Yuan,Xiangqun Cui,et al. Status of the first Antarctic Survey Telescopes for Dome A[C]. 见:. Amsterdam, Netherlands. 2012-7-1. |
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