Mirror seeing of the Antarctic survey telescope

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	Mirror seeing of the Antarctic survey telescope
	ZHANG Kaiyuan ; LI Zhengyang ; YUAN Xiangyan ; PEI Chong
刊名	Advances in Polar Science
	2014-09
卷号	25 期号:3 页码:133-137
关键词	mirror seeing Anta rctic survey telescopes Dome A turbulence
英文摘要	Site test ing results indicate thal Antarctic Dome A is an excellent ground-based astronomical sile sui table for observations ranging from visible to infrared wavelengths. However, the harsh environment in Antarctica, especially the very low temperature and atmospheric pressure, always produces frost on the telescopes' mirrors, which are exposed to the air. Since the Dome A site is still unattended, the Antarctic telescope tubes are always designed to be filled with dry nitrogen, and the outer surfaces of the oplical system are heated by an indium-tin oxide thin film. These precautions can prevent optical surfaces from frosting over, but they degrade the image quality by introducing additional rnirror seeing. Based on testing observations of the second Antarctic Survey Telescope (AST3-2) in the Mohe site in China, rnirror seeing resulting from the heated aspheric plate has been rneasured using micro-thennal sensors. Results comparing the real-time atmospheric seeing monitored by Ihe Differenlial Image Motion Monitor and real-time exarninations of image quality agree well.
学科主题	南极望远镜 ; 天文技术与方法
公开日期	2015-03-13
内容类型	期刊论文
源URL	[http://ir.niaot.ac.cn/handle/114a32/802]
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_期刊论文南京天文光学技术研究所_南极天文技术中心_期刊论文南京天文光学技术研究所_望远镜新技术研究室_期刊论文
推荐引用方式 GB/T 7714	ZHANG Kaiyuan,LI Zhengyang,YUAN Xiangyan,et al. Mirror seeing of the Antarctic survey telescope[J]. Advances in Polar Science,2014,25(3):133-137.
APA	ZHANG Kaiyuan,LI Zhengyang,YUAN Xiangyan,&PEI Chong.(2014).Mirror seeing of the Antarctic survey telescope.Advances in Polar Science,25(3),133-137.
MLA	ZHANG Kaiyuan,et al."Mirror seeing of the Antarctic survey telescope".Advances in Polar Science 25.3(2014):133-137.