Adaptive-optics performance of Antarctic telescopes
The performance of natural guide star adaptive-optics systems for telescopes located on the Antarctic plateau is evaluated and compared with adaptive-optics systems operated with the characteristic midlatitude atmosphere found at Mauna Kea. A 2-m telescope with tip–tilt correction and an 8-m telesco...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.64.7473 2023-05-15T14:04:15+02:00 Adaptive-optics performance of Antarctic telescopes Jon S. Lawrence The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.64.7473 http://www.phys.unsw.edu.au/~mgb/Antbib/lawrence_optics.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.64.7473 http://www.phys.unsw.edu.au/~mgb/Antbib/lawrence_optics.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.phys.unsw.edu.au/~mgb/Antbib/lawrence_optics.pdf text ftciteseerx 2016-01-08T15:54:33Z The performance of natural guide star adaptive-optics systems for telescopes located on the Antarctic plateau is evaluated and compared with adaptive-optics systems operated with the characteristic midlatitude atmosphere found at Mauna Kea. A 2-m telescope with tip–tilt correction and an 8-m telescope equipped with a high-order adaptive-optics system are considered. Because of the large isoplanatic angle of the South Pole atmosphere, the anisoplanatic error associated with an adaptive-optics correction is negligible, and the achievable resolution is determined only by the fitting error associated with the number of corrected wave-front modes, which depends on the number of actuators on the deformable mirror. The usable field of view of an adaptive-optics equipped Antarctic telescope is thus orders of magnitude larger than for a similar telescope located at a mid-latitude site; this large field of view obviates the necessity for multiconjugate adaptive-optics systems that use multiple laser guide stars. These results, combined with the low infrared sky backgrounds, indicate that the Antarctic plateau is the best site on Earth at which to perform high-resolution imaging with large telescopes, either over large fields of view or with appreciable sky coverage. Preliminary site-testing results obtained recently from Text Antarc* Antarctic South pole South pole Unknown Antarctic South Pole The Antarctic |
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English |
description |
The performance of natural guide star adaptive-optics systems for telescopes located on the Antarctic plateau is evaluated and compared with adaptive-optics systems operated with the characteristic midlatitude atmosphere found at Mauna Kea. A 2-m telescope with tip–tilt correction and an 8-m telescope equipped with a high-order adaptive-optics system are considered. Because of the large isoplanatic angle of the South Pole atmosphere, the anisoplanatic error associated with an adaptive-optics correction is negligible, and the achievable resolution is determined only by the fitting error associated with the number of corrected wave-front modes, which depends on the number of actuators on the deformable mirror. The usable field of view of an adaptive-optics equipped Antarctic telescope is thus orders of magnitude larger than for a similar telescope located at a mid-latitude site; this large field of view obviates the necessity for multiconjugate adaptive-optics systems that use multiple laser guide stars. These results, combined with the low infrared sky backgrounds, indicate that the Antarctic plateau is the best site on Earth at which to perform high-resolution imaging with large telescopes, either over large fields of view or with appreciable sky coverage. Preliminary site-testing results obtained recently from |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jon S. Lawrence |
spellingShingle |
Jon S. Lawrence Adaptive-optics performance of Antarctic telescopes |
author_facet |
Jon S. Lawrence |
author_sort |
Jon S. Lawrence |
title |
Adaptive-optics performance of Antarctic telescopes |
title_short |
Adaptive-optics performance of Antarctic telescopes |
title_full |
Adaptive-optics performance of Antarctic telescopes |
title_fullStr |
Adaptive-optics performance of Antarctic telescopes |
title_full_unstemmed |
Adaptive-optics performance of Antarctic telescopes |
title_sort |
adaptive-optics performance of antarctic telescopes |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.64.7473 http://www.phys.unsw.edu.au/~mgb/Antbib/lawrence_optics.pdf |
geographic |
Antarctic South Pole The Antarctic |
geographic_facet |
Antarctic South Pole The Antarctic |
genre |
Antarc* Antarctic South pole South pole |
genre_facet |
Antarc* Antarctic South pole South pole |
op_source |
http://www.phys.unsw.edu.au/~mgb/Antbib/lawrence_optics.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.64.7473 http://www.phys.unsw.edu.au/~mgb/Antbib/lawrence_optics.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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