Wavefront outer scale deduced from interferometric dispersed fringes
| العنوان: | Wavefront outer scale deduced from interferometric dispersed fringes |
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| المؤلفون: | Denis Mourard, Julien Borgnino, Aziz Ziad, Slobodan Jankov, François Martin, D. Bonneau, F. Patru, J. Maire |
| المساهمون: | Laboratoire Hippolyte Fizeau (FIZEAU), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Gemini (LG), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Astronomy and Astrophysics-A&A Astronomy and Astrophysics-A&A, EDP Sciences, 2006, 448, pp.1225-1234 Astronomy and Astrophysics-A&A, EDP Sciences, 2006, 448, pp.1225-1234. ⟨10.1051/0004-6361:20052806⟩ |
| بيانات النشر: | EDP Sciences, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Physics, Wavefront, Scale (ratio), business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, 01 natural sciences, 010309 optics, Interferometry, Optics, Space and Planetary Science, 0103 physical sciences, Astronomical interferometer, Range (statistics), Angular resolution, Adaptive optics, business, 010303 astronomy & astrophysics, Optical path length |
| الوصف: | In addition to site characterization, measurements of critical atmospheric parameters are required to design and to optimize future adaptive optic systems and long-baseline interferometers. It is possible to estimate seeing conditions by processing data obtained with existing High Angular Resolution instruments. We report the results of joint observations with the GI2T interferometer and the GSM site-testing monitor performed over a period of several nights. We compared estimates of the wavefront outer scale done at various baselines as well as the seeing (Fried’s parameter). We processed interferometric data by calculating power spectra of dispersed fringe images. Deduced measurements of the optical path difference lead to the estimates of the outer scale. We found that the outer scale values obtained from the GI2T data are mostly in the 5−30 m range, in good agreement with GSM measurements. |
| تدمد: | 1432-0746 0004-6361 |
| DOI: | 10.1051/0004-6361:20052806 |
| DOI: | 10.1051/0004-6361:20052806⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::251724865b1c34f454845b3f33215c81 https://doi.org/10.1051/0004-6361:20052806 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....251724865b1c34f454845b3f33215c81 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320746 00046361 |
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| DOI: | 10.1051/0004-6361:20052806 |