| DOI | Resolve DOI: https://doi.org/10.1117/12.2057072 |
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| Author | Search for: Spanò, P.1 |
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| Affiliation | - National Research Council of Canada. National Science Infrastructure
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| Format | Text, Article |
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| Conference | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, June 23-27, 2014 |
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| Subject | Adaptive optics; Refraction; Telescopes; ADC; Atmospheric dispersion; Atmospheric model; Atmospheric refractions; TMT; ZEMAX; Atmospheric movements |
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| Abstract | ZEMAX provides a standard built-in atmospheric model to simulate atmospheric refraction and dispersion. This model has been compared with other ones to assess its intrinsic accuracy, critical for very demanding application like ADCs for AO-assisted extremely large telescopes. A revised simple model, based on updated published data of the air refractivity, is proposed by using the "Gradient 5" surface of Zemax. At large zenith angles (65 deg), discrepancies up to 100 mas in the differential refraction are expected near the UV atmospheric transmission cutoff. When high-accuracy modeling is required, the latter model should be preferred. |
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| Publication date | 2014-07-28 |
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| Publisher | SPIE |
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| In | |
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| Series | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21275558 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 5cea3e23-21e5-4843-a265-ad51a316af0d |
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| Record created | 2015-07-14 |
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| Record modified | 2020-04-22 |
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