Anglo-Australian Observatory
Seeing, the degradation of resolution due to the earth's atmosphere, is a crucial factor in determining the performance of ground-based telescopes. This degradation is predominantly the result of thermal inhomogeneity of the air, to which a substantial contribution arises from the diurnal cycle...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.70.9372 2023-05-15T13:57:37+02:00 Anglo-Australian Observatory P. R. Gillingham The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.70.9372 http://www.phys.unsw.edu.au/~mgb/Antbib/anare_melb_prg2.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.70.9372 http://www.phys.unsw.edu.au/~mgb/Antbib/anare_melb_prg2.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/anare_melb_prg2.pdf text ftciteseerx 2016-01-08T18:53:10Z Seeing, the degradation of resolution due to the earth's atmosphere, is a crucial factor in determining the performance of ground-based telescopes. This degradation is predominantly the result of thermal inhomogeneity of the air, to which a substantial contribution arises from the diurnal cycle of solar heating. In most of Antarctica the diurnal variation in temperature is negligible throughout winter, so good seeing can be expected on this account. Above the highest point of the Antarctic plateau the predominant air flow is a slow settling from the stratosphere which should promote extraordinarily uniform optical quality. Unfortunately, the lower boundary layer in which a strong inverse temperature gradient develops, especially in winter, is likely often to degrade what might otherwise be unprecedented seeing. Critical tests are needed to measure this degradation and determine whether it can be circumvented by mounting a telescope on a higher pier than usual. 28.1 THE IMPORTANCE TO ASTRONOMY OF GOOD SEEING For astronomy at wavelengths from the near-infrared (IR) up to a few mm, it is clear that high Antarctic sites, with their very dry cold atmosphere, offer the potential of enormous gains in Text Antarc* Antarctic Antarctica Unknown Antarctic The Antarctic |
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Seeing, the degradation of resolution due to the earth's atmosphere, is a crucial factor in determining the performance of ground-based telescopes. This degradation is predominantly the result of thermal inhomogeneity of the air, to which a substantial contribution arises from the diurnal cycle of solar heating. In most of Antarctica the diurnal variation in temperature is negligible throughout winter, so good seeing can be expected on this account. Above the highest point of the Antarctic plateau the predominant air flow is a slow settling from the stratosphere which should promote extraordinarily uniform optical quality. Unfortunately, the lower boundary layer in which a strong inverse temperature gradient develops, especially in winter, is likely often to degrade what might otherwise be unprecedented seeing. Critical tests are needed to measure this degradation and determine whether it can be circumvented by mounting a telescope on a higher pier than usual. 28.1 THE IMPORTANCE TO ASTRONOMY OF GOOD SEEING For astronomy at wavelengths from the near-infrared (IR) up to a few mm, it is clear that high Antarctic sites, with their very dry cold atmosphere, offer the potential of enormous gains in |
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The Pennsylvania State University CiteSeerX Archives |
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Text |
author |
P. R. Gillingham |
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P. R. Gillingham Anglo-Australian Observatory |
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P. R. Gillingham |
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P. R. Gillingham |
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Anglo-Australian Observatory |
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Anglo-Australian Observatory |
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Anglo-Australian Observatory |
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Anglo-Australian Observatory |
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Anglo-Australian Observatory |
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anglo-australian observatory |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.70.9372 http://www.phys.unsw.edu.au/~mgb/Antbib/anare_melb_prg2.pdf |
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Antarctic The Antarctic |
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Antarctic The Antarctic |
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Antarc* Antarctic Antarctica |
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Antarc* Antarctic Antarctica |
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http://www.phys.unsw.edu.au/~mgb/Antbib/anare_melb_prg2.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.70.9372 http://www.phys.unsw.edu.au/~mgb/Antbib/anare_melb_prg2.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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