History, Present Status & Future of Site Testing at Dome C
International audience Hereafter we give a brief history of our contribution to astronomical site testing in Antarctica, at least for the high angular resolution in the visible range. The decision to undertake the first site testing at South Pole began one year after a congress organized by French A...
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Other Authors: | , , , , , , |
Format: | Conference Object |
Language: | English |
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HAL CCSD
2007
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Online Access: | https://hal.archives-ouvertes.fr/hal-02480401 https://doi.org/10.1051/eas:2007067 |
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ftccsdartic:oai:HAL:hal-02480401v1 |
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openpolar |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Vernin, J. Agabi, A. Aristidi, E. Azouit, M. Chadid, M. Fossat, E. Sadibekova, T. Trinquet, H. Ziad, A. History, Present Status & Future of Site Testing at Dome C |
topic_facet |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience Hereafter we give a brief history of our contribution to astronomical site testing in Antarctica, at least for the high angular resolution in the visible range. The decision to undertake the first site testing at South Pole began one year after a congress organized by French Académie des Sciences, in year 1992. Indeed, in 1993 a meeting took place in Chicago with the participation of Peter Gillingham, Al Harper and Jean Vernin where each one took the respective responsibility of 1) giving a PhD student, 2) the South Pole infrastructure and 3) the relevant instruments. During winter 1995, thanks to a mast equipped with micro-thermal sensors, we demonstrated (Marks et al., 1996, A&AS, 118, 1) that the first 30 m of the surface layer was disrupted by strong optical turbulence. Then, the year after, 15 balloons equipped with micro-thermal probes were successfully launched from South Pole. Marks et al. (1999, A&AS, 134, 161) shown that most of the optical turbulence at South Pole was concentrated within a layer 200 m thick above the ice level. From this study, it becomes clear that the noticeable katabatic wind present at South Pole was generating this huge surface layer and that is why we oriented our astronomical site characterization toward Dôme C. Our first summer seeing estimations began in 2000, which demonstrated (Aristidi et al., 2003, A&AS, 406, L19 & Aristidi et al., 2005, A&A, 444, 651) that, as expected, the surface wind was much less than at South Pole, and, as a matter of fact, the seeing was much better, and was even exceptional during the four hours of the afternoon where a seeing of less than 0.5 arcsec was measured. In 2005, the Concordia base was first open during the polar night, and one of us, A. Agabi was able to launch 41 balloons equipped with micro-thermal sensors. A differential image motion monitor (DIMM) was also setup with success. At mid winter, Agabi et al. (2006, PASP, 118, 344) showed that most of the optical turbulence came from the first ... |
author2 |
Joseph Louis LAGRANGE (LAGRANGE) 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 Universitaire d'Astrophysique de Nice (LUAN) 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)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Hippolyte Fizeau (FIZEAU) |
format |
Conference Object |
author |
Vernin, J. Agabi, A. Aristidi, E. Azouit, M. Chadid, M. Fossat, E. Sadibekova, T. Trinquet, H. Ziad, A. |
author_facet |
Vernin, J. Agabi, A. Aristidi, E. Azouit, M. Chadid, M. Fossat, E. Sadibekova, T. Trinquet, H. Ziad, A. |
author_sort |
Vernin, J. |
title |
History, Present Status & Future of Site Testing at Dome C |
title_short |
History, Present Status & Future of Site Testing at Dome C |
title_full |
History, Present Status & Future of Site Testing at Dome C |
title_fullStr |
History, Present Status & Future of Site Testing at Dome C |
title_full_unstemmed |
History, Present Status & Future of Site Testing at Dome C |
title_sort |
history, present status & future of site testing at dome c |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.archives-ouvertes.fr/hal-02480401 https://doi.org/10.1051/eas:2007067 |
op_coverage |
Roscoff, France |
long_lat |
ENVELOPE(-57.050,-57.050,-84.050,-84.050) |
geographic |
Harper South Pole |
geographic_facet |
Harper South Pole |
genre |
Antarc* Antarctica polar night South pole South pole |
genre_facet |
Antarc* Antarctica polar night South pole South pole |
op_source |
1st ARENA Conference on "Large Astronomical Infrastructures at CONCORDIA, prospects and constraints for Antarctic Optical/IR Astronomy" https://hal.archives-ouvertes.fr/hal-02480401 1st ARENA Conference on "Large Astronomical Infrastructures at CONCORDIA, prospects and constraints for Antarctic Optical/IR Astronomy", 2007, Roscoff, France. pp.23-30, ⟨10.1051/eas:2007067⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1051/eas:2007067 hal-02480401 https://hal.archives-ouvertes.fr/hal-02480401 BIBCODE: 2007EAS.25.23V doi:10.1051/eas:2007067 |
op_doi |
https://doi.org/10.1051/eas:2007067 |
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1766266093990576128 |
spelling |
ftccsdartic:oai:HAL:hal-02480401v1 2023-05-15T13:58:04+02:00 History, Present Status & Future of Site Testing at Dome C Vernin, J. Agabi, A. Aristidi, E. Azouit, M. Chadid, M. Fossat, E. Sadibekova, T. Trinquet, H. Ziad, A. Joseph Louis LAGRANGE (LAGRANGE) 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 Universitaire d'Astrophysique de Nice (LUAN) 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)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Hippolyte Fizeau (FIZEAU) Roscoff, France 2007 https://hal.archives-ouvertes.fr/hal-02480401 https://doi.org/10.1051/eas:2007067 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1051/eas:2007067 hal-02480401 https://hal.archives-ouvertes.fr/hal-02480401 BIBCODE: 2007EAS.25.23V doi:10.1051/eas:2007067 1st ARENA Conference on "Large Astronomical Infrastructures at CONCORDIA, prospects and constraints for Antarctic Optical/IR Astronomy" https://hal.archives-ouvertes.fr/hal-02480401 1st ARENA Conference on "Large Astronomical Infrastructures at CONCORDIA, prospects and constraints for Antarctic Optical/IR Astronomy", 2007, Roscoff, France. pp.23-30, ⟨10.1051/eas:2007067⟩ [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/conferenceObject Conference papers 2007 ftccsdartic https://doi.org/10.1051/eas:2007067 2021-12-12T01:54:22Z International audience Hereafter we give a brief history of our contribution to astronomical site testing in Antarctica, at least for the high angular resolution in the visible range. The decision to undertake the first site testing at South Pole began one year after a congress organized by French Académie des Sciences, in year 1992. Indeed, in 1993 a meeting took place in Chicago with the participation of Peter Gillingham, Al Harper and Jean Vernin where each one took the respective responsibility of 1) giving a PhD student, 2) the South Pole infrastructure and 3) the relevant instruments. During winter 1995, thanks to a mast equipped with micro-thermal sensors, we demonstrated (Marks et al., 1996, A&AS, 118, 1) that the first 30 m of the surface layer was disrupted by strong optical turbulence. Then, the year after, 15 balloons equipped with micro-thermal probes were successfully launched from South Pole. Marks et al. (1999, A&AS, 134, 161) shown that most of the optical turbulence at South Pole was concentrated within a layer 200 m thick above the ice level. From this study, it becomes clear that the noticeable katabatic wind present at South Pole was generating this huge surface layer and that is why we oriented our astronomical site characterization toward Dôme C. Our first summer seeing estimations began in 2000, which demonstrated (Aristidi et al., 2003, A&AS, 406, L19 & Aristidi et al., 2005, A&A, 444, 651) that, as expected, the surface wind was much less than at South Pole, and, as a matter of fact, the seeing was much better, and was even exceptional during the four hours of the afternoon where a seeing of less than 0.5 arcsec was measured. In 2005, the Concordia base was first open during the polar night, and one of us, A. Agabi was able to launch 41 balloons equipped with micro-thermal sensors. A differential image motion monitor (DIMM) was also setup with success. At mid winter, Agabi et al. (2006, PASP, 118, 344) showed that most of the optical turbulence came from the first ... Conference Object Antarc* Antarctica polar night South pole South pole Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Harper ENVELOPE(-57.050,-57.050,-84.050,-84.050) South Pole |