Photometric quality of Dome C for the winter 2008 from ASTEP South
International audience ASTEP South is an Antarctic Search for Transiting Exo- Planets in the South pole field, from the Concordia station, Dome C, Antarctica. The instrument consists of a thermalized 10 cm refractor observing a fixed 3.88° x 3.88° field of view to perform photometry of several thous...
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ftunivnantes:oai:HAL:hal-00456513v1 2023-05-15T13:31:27+02:00 Photometric quality of Dome C for the winter 2008 from ASTEP South Crouzet, Nicolas Guillot, Tristan Agabi, Karim Fanteï-Caujolle, Yan Fressin, Francois Rivet, Jean-Pierre Bondoux, Erick Challita, Zalpha Abe, Lyu Blazit, Alain Bonhomme, Serge Daban, Jean-Baptiste Gouvret, Carole Mékarnia, Djamel Schmider, François-Xavier Valbousquet, Franck Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) Université Nice Sophia Antipolis (1965 - 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 COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Hippolyte Fizeau (FIZEAU) Harvard-Smithsonian Center for Astrophysics (CfA) Harvard University Cambridge -Smithsonian Institution Station Concordia IPEV Optique et Vision Secteur privé ASTEP (Antarctic Search for Transiting ExoPlanets) ANR-06-BLAN-0043,A STEP,A STEP: an Antarctic Search for Transiting Extrasolar Planets(2006) Frascati, Italy 2009-05-11 https://hal.archives-ouvertes.fr/hal-00456513 https://hal.archives-ouvertes.fr/hal-00456513/document https://hal.archives-ouvertes.fr/hal-00456513/file/Crouzet_C.pdf en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/1002.2898 hal-00456513 https://hal.archives-ouvertes.fr/hal-00456513 https://hal.archives-ouvertes.fr/hal-00456513/document https://hal.archives-ouvertes.fr/hal-00456513/file/Crouzet_C.pdf ARXIV: 1002.2898 info:eu-repo/semantics/OpenAccess 3rd ARENA Conference on "An Astronomical Observatory at Concordia (Dome C, Antarctica)" 3rd ARENA Conference : An Astronomical Observatory at Concordia (Dome C, Antarctica) for the next decade https://hal.archives-ouvertes.fr/hal-00456513 3rd ARENA Conference : An Astronomical Observatory at Concordia (Dome C, Antarctica) for the next decade, May 2009, Frascati, Italy. p. 367-373 [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] info:eu-repo/semantics/conferenceObject Conference papers 2009 ftunivnantes 2022-08-09T23:23:59Z International audience ASTEP South is an Antarctic Search for Transiting Exo- Planets in the South pole field, from the Concordia station, Dome C, Antarctica. The instrument consists of a thermalized 10 cm refractor observing a fixed 3.88° x 3.88° field of view to perform photometry of several thousand stars at visible wavelengths (700-900 nm). The first winter campaign in 2008 led to the retrieval of nearly 1600 hours of data. We derive the fraction of photometric nights by measuring the number of detectable stars in the field. The method is sensitive to the presence of small cirrus clouds which are invisible to the naked eye. The fraction of night-time for which at least 50% of the stars are detected is 74% from June to September 2008. Most of the lost time (18.5% out of 26%) is due to periods of bad weather conditions lasting for a few days ("white outs"). Extended periods of clear weather exist. For example, between July 10 and August 10, 2008, the total fraction of time (day+night) for which photometric observations were possible was 60%. This confirms the very high quality of Dome C for nearly continuous photometric observations during the Antarctic winter. Conference Object Antarc* Antarctic Antarctica South pole South pole Université de Nantes: HAL-UNIV-NANTES Antarctic The Antarctic South Pole Concordia Station ENVELOPE(123.333,123.333,-75.100,-75.100) |
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collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] |
spellingShingle |
[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] Crouzet, Nicolas Guillot, Tristan Agabi, Karim Fanteï-Caujolle, Yan Fressin, Francois Rivet, Jean-Pierre Bondoux, Erick Challita, Zalpha Abe, Lyu Blazit, Alain Bonhomme, Serge Daban, Jean-Baptiste Gouvret, Carole Mékarnia, Djamel Schmider, François-Xavier Valbousquet, Franck Photometric quality of Dome C for the winter 2008 from ASTEP South |
topic_facet |
[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] |
description |
International audience ASTEP South is an Antarctic Search for Transiting Exo- Planets in the South pole field, from the Concordia station, Dome C, Antarctica. The instrument consists of a thermalized 10 cm refractor observing a fixed 3.88° x 3.88° field of view to perform photometry of several thousand stars at visible wavelengths (700-900 nm). The first winter campaign in 2008 led to the retrieval of nearly 1600 hours of data. We derive the fraction of photometric nights by measuring the number of detectable stars in the field. The method is sensitive to the presence of small cirrus clouds which are invisible to the naked eye. The fraction of night-time for which at least 50% of the stars are detected is 74% from June to September 2008. Most of the lost time (18.5% out of 26%) is due to periods of bad weather conditions lasting for a few days ("white outs"). Extended periods of clear weather exist. For example, between July 10 and August 10, 2008, the total fraction of time (day+night) for which photometric observations were possible was 60%. This confirms the very high quality of Dome C for nearly continuous photometric observations during the Antarctic winter. |
author2 |
Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) Université Nice Sophia Antipolis (1965 - 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 COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Hippolyte Fizeau (FIZEAU) Harvard-Smithsonian Center for Astrophysics (CfA) Harvard University Cambridge -Smithsonian Institution Station Concordia IPEV Optique et Vision Secteur privé ASTEP (Antarctic Search for Transiting ExoPlanets) ANR-06-BLAN-0043,A STEP,A STEP: an Antarctic Search for Transiting Extrasolar Planets(2006) |
format |
Conference Object |
author |
Crouzet, Nicolas Guillot, Tristan Agabi, Karim Fanteï-Caujolle, Yan Fressin, Francois Rivet, Jean-Pierre Bondoux, Erick Challita, Zalpha Abe, Lyu Blazit, Alain Bonhomme, Serge Daban, Jean-Baptiste Gouvret, Carole Mékarnia, Djamel Schmider, François-Xavier Valbousquet, Franck |
author_facet |
Crouzet, Nicolas Guillot, Tristan Agabi, Karim Fanteï-Caujolle, Yan Fressin, Francois Rivet, Jean-Pierre Bondoux, Erick Challita, Zalpha Abe, Lyu Blazit, Alain Bonhomme, Serge Daban, Jean-Baptiste Gouvret, Carole Mékarnia, Djamel Schmider, François-Xavier Valbousquet, Franck |
author_sort |
Crouzet, Nicolas |
title |
Photometric quality of Dome C for the winter 2008 from ASTEP South |
title_short |
Photometric quality of Dome C for the winter 2008 from ASTEP South |
title_full |
Photometric quality of Dome C for the winter 2008 from ASTEP South |
title_fullStr |
Photometric quality of Dome C for the winter 2008 from ASTEP South |
title_full_unstemmed |
Photometric quality of Dome C for the winter 2008 from ASTEP South |
title_sort |
photometric quality of dome c for the winter 2008 from astep south |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.archives-ouvertes.fr/hal-00456513 https://hal.archives-ouvertes.fr/hal-00456513/document https://hal.archives-ouvertes.fr/hal-00456513/file/Crouzet_C.pdf |
op_coverage |
Frascati, Italy |
long_lat |
ENVELOPE(123.333,123.333,-75.100,-75.100) |
geographic |
Antarctic The Antarctic South Pole Concordia Station |
geographic_facet |
Antarctic The Antarctic South Pole Concordia Station |
genre |
Antarc* Antarctic Antarctica South pole South pole |
genre_facet |
Antarc* Antarctic Antarctica South pole South pole |
op_source |
3rd ARENA Conference on "An Astronomical Observatory at Concordia (Dome C, Antarctica)" 3rd ARENA Conference : An Astronomical Observatory at Concordia (Dome C, Antarctica) for the next decade https://hal.archives-ouvertes.fr/hal-00456513 3rd ARENA Conference : An Astronomical Observatory at Concordia (Dome C, Antarctica) for the next decade, May 2009, Frascati, Italy. p. 367-373 |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/1002.2898 hal-00456513 https://hal.archives-ouvertes.fr/hal-00456513 https://hal.archives-ouvertes.fr/hal-00456513/document https://hal.archives-ouvertes.fr/hal-00456513/file/Crouzet_C.pdf ARXIV: 1002.2898 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766018220961038336 |