Mirror seeing of the Antarctic survey telescope
Site testing results indicate that Antarctic Dome A is an excellent ground-based astronomical site suitable 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...
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ftarcticportal:oai:generic.eprints.org:2530 2023-11-05T03:31:01+01:00 Mirror seeing of the Antarctic survey telescope Kaiyuan, Zhang Zhengyang, Li Xiangyan, Yuan Chong, Pei 2014-09 application/pdf http://library.arcticportal.org/2530/ http://library.arcticportal.org/2530/1/A20140301.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2530/1/A20140301.pdf Kaiyuan, Zhang and Zhengyang, Li and Xiangyan, Yuan and Chong, Pei (2014) Mirror seeing of the Antarctic survey telescope. Advances in Polar Science, 25 (3). pp. 133-137. Atmosphere Space Article PeerReviewed 2014 ftarcticportal 2023-10-11T22:54:25Z Site testing results indicate that Antarctic Dome A is an excellent ground-based astronomical site suitable 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 optical system are heated by an indium-tin oxide thin film. These precautions can prevent the optical surfaces from frosting over, but they degrade the image quality by introducing additional mirror seeing. Based on testing observations of the second Antarctic Survey Telescope (AST3-2) in the Mohe site in China, mirror seeing resulting from the heated aspheric plate has been measured using micro-thermal sensors. Results comparing the real-time atmospheric seeing monitored by the Differential Image Motion Monitor and real-time examinations of image quality agree well. Article in Journal/Newspaper Advances in Polar Science Antarc* Antarctic Antarctica Polar Science Polar Science Arctic Portal Library |
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Open Polar |
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Arctic Portal Library |
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ftarcticportal |
language |
English |
topic |
Atmosphere Space |
spellingShingle |
Atmosphere Space Kaiyuan, Zhang Zhengyang, Li Xiangyan, Yuan Chong, Pei Mirror seeing of the Antarctic survey telescope |
topic_facet |
Atmosphere Space |
description |
Site testing results indicate that Antarctic Dome A is an excellent ground-based astronomical site suitable 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 optical system are heated by an indium-tin oxide thin film. These precautions can prevent the optical surfaces from frosting over, but they degrade the image quality by introducing additional mirror seeing. Based on testing observations of the second Antarctic Survey Telescope (AST3-2) in the Mohe site in China, mirror seeing resulting from the heated aspheric plate has been measured using micro-thermal sensors. Results comparing the real-time atmospheric seeing monitored by the Differential Image Motion Monitor and real-time examinations of image quality agree well. |
format |
Article in Journal/Newspaper |
author |
Kaiyuan, Zhang Zhengyang, Li Xiangyan, Yuan Chong, Pei |
author_facet |
Kaiyuan, Zhang Zhengyang, Li Xiangyan, Yuan Chong, Pei |
author_sort |
Kaiyuan, Zhang |
title |
Mirror seeing of the Antarctic survey telescope |
title_short |
Mirror seeing of the Antarctic survey telescope |
title_full |
Mirror seeing of the Antarctic survey telescope |
title_fullStr |
Mirror seeing of the Antarctic survey telescope |
title_full_unstemmed |
Mirror seeing of the Antarctic survey telescope |
title_sort |
mirror seeing of the antarctic survey telescope |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2014 |
url |
http://library.arcticportal.org/2530/ http://library.arcticportal.org/2530/1/A20140301.pdf |
genre |
Advances in Polar Science Antarc* Antarctic Antarctica Polar Science Polar Science |
genre_facet |
Advances in Polar Science Antarc* Antarctic Antarctica Polar Science Polar Science |
op_relation |
http://library.arcticportal.org/2530/1/A20140301.pdf Kaiyuan, Zhang and Zhengyang, Li and Xiangyan, Yuan and Chong, Pei (2014) Mirror seeing of the Antarctic survey telescope. Advances in Polar Science, 25 (3). pp. 133-137. |
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1781696289081131008 |