ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole
ASTEP South is the first phase of the ASTEP project (Antarctic Search for Transiting ExoPlanets). The instrument is a fixed 10 cm refractor with a 4kx4k CCD camera in a thermalized box, pointing continuously a 3.88° x 3.88° field of view centered on the celestial South pole. ASTEP South became fully...
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Language: | English |
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HAL CCSD
2009
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Online Access: | https://hal.science/hal-00437586 https://hal.science/hal-00437586/document https://hal.science/hal-00437586/file/Crouzet2009.pdf |
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openpolar |
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Open Polar |
collection |
HAL Université Côte d'Azur |
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ftunivcotedazur |
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 Rivet, Jean-Pierre Bondoux, Erick Challita, Zalpha Fanteï-Caujolle, Yan Fressin, François Mékarnia, Djamel Schmider, François-Xavier Valbousquet, Franck Blazit, Alain Bonhomme, Serge Abe, Lyu Daban, Jean-Baptiste Gouvret, Carole Fruth, Thomas Rauer, Heike Erikson, Anders Barbieri, Mauro Aigrain, Suzanne Pont, Frédéric ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole |
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 |
ASTEP South is the first phase of the ASTEP project (Antarctic Search for Transiting ExoPlanets). The instrument is a fixed 10 cm refractor with a 4kx4k CCD camera in a thermalized box, pointing continuously a 3.88° x 3.88° field of view centered on the celestial South pole. ASTEP South became fully functional in June 2008 and obtained 1592 hours of data during the 2008 Antarctic winter. The data are of good quality but the analysis has to account for changes in the point spread function due to rapid ground seeing variations and instrumental effects. The pointing direction is stable within 10 arcseconds on a daily timescale and drifts by only 34 arcseconds in 50 days. A truly continuous photometry of bright stars is possible in June (the noon sky background peaks at a magnitude R=15 arcsec-2 on June 22), but becomes challenging in July (the noon sky background magnitude is R=12.5 arcsec−2 on July 20). The weather conditions are estimated from the number of stars detected in the field. For the 2008 winter, the statistics are between 56.3 % and 68.4 % of excellent weather, 17.9 % to 30 % of veiled weather and 13.7 % of bad weather. Using these results in a probabilistic analysis of transit detection, we show that the detection efficiency of transiting exoplanets in one given field is improved at Dome C compared to a temperate site such as La Silla. For example we estimate that a year-long campaign of 10 cm refractor could reach an efficiency of 69 % at Dome C versus 45 % at La Silla for detecting 2-day period giant planets around target stars from magnitude 10 to 15. This shows the high potential of Dome C for photometry and future planet discoveries. [Short abstract] |
author2 |
Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Hippolyte Fizeau (FIZEAU) L'Institut polaire français Paul-Emile Victor (IPEV) Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) Harvard-Smithsonian Center for Astrophysics (CfA) Harvard University-Smithsonian Institution Optique et Vision Secteur privé DLR Institute of Planetary Research German Aerospace Center (DLR) Zentrum für Astronomie und Astrophysik Berlin (ZAA) Technical University of Berlin / Technische Universität Berlin (TUB) Dipartimento di Astronomia Padova Università degli Studi di Padova = University of Padua (Unipd) University of Exeter ASTEP (Antarctic Search for Transiting ExoPlanets) ANR-06-BLAN-0043,A STEP,A STEP: an Antarctic Search for Transiting Extrasolar Planets(2006) |
format |
Report |
author |
Crouzet, Nicolas Guillot, Tristan Agabi, Karim Rivet, Jean-Pierre Bondoux, Erick Challita, Zalpha Fanteï-Caujolle, Yan Fressin, François Mékarnia, Djamel Schmider, François-Xavier Valbousquet, Franck Blazit, Alain Bonhomme, Serge Abe, Lyu Daban, Jean-Baptiste Gouvret, Carole Fruth, Thomas Rauer, Heike Erikson, Anders Barbieri, Mauro Aigrain, Suzanne Pont, Frédéric |
author_facet |
Crouzet, Nicolas Guillot, Tristan Agabi, Karim Rivet, Jean-Pierre Bondoux, Erick Challita, Zalpha Fanteï-Caujolle, Yan Fressin, François Mékarnia, Djamel Schmider, François-Xavier Valbousquet, Franck Blazit, Alain Bonhomme, Serge Abe, Lyu Daban, Jean-Baptiste Gouvret, Carole Fruth, Thomas Rauer, Heike Erikson, Anders Barbieri, Mauro Aigrain, Suzanne Pont, Frédéric |
author_sort |
Crouzet, Nicolas |
title |
ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole |
title_short |
ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole |
title_full |
ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole |
title_fullStr |
ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole |
title_full_unstemmed |
ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole |
title_sort |
astep south: an antarctic search for transiting exoplanets around the celestial south pole |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00437586 https://hal.science/hal-00437586/document https://hal.science/hal-00437586/file/Crouzet2009.pdf |
geographic |
Antarctic South Pole |
geographic_facet |
Antarctic South Pole |
genre |
Antarc* Antarctic South pole South pole |
genre_facet |
Antarc* Antarctic South pole South pole |
op_source |
https://hal.science/hal-00437586 2009 |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/0912.2644 hal-00437586 https://hal.science/hal-00437586 https://hal.science/hal-00437586/document https://hal.science/hal-00437586/file/Crouzet2009.pdf ARXIV: 0912.2644 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1802637982348345344 |
spelling |
ftunivcotedazur:oai:HAL:hal-00437586v1 2024-06-23T07:47:48+00:00 ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole Crouzet, Nicolas Guillot, Tristan Agabi, Karim Rivet, Jean-Pierre Bondoux, Erick Challita, Zalpha Fanteï-Caujolle, Yan Fressin, François Mékarnia, Djamel Schmider, François-Xavier Valbousquet, Franck Blazit, Alain Bonhomme, Serge Abe, Lyu Daban, Jean-Baptiste Gouvret, Carole Fruth, Thomas Rauer, Heike Erikson, Anders Barbieri, Mauro Aigrain, Suzanne Pont, Frédéric Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Hippolyte Fizeau (FIZEAU) L'Institut polaire français Paul-Emile Victor (IPEV) Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) Harvard-Smithsonian Center for Astrophysics (CfA) Harvard University-Smithsonian Institution Optique et Vision Secteur privé DLR Institute of Planetary Research German Aerospace Center (DLR) Zentrum für Astronomie und Astrophysik Berlin (ZAA) Technical University of Berlin / Technische Universität Berlin (TUB) Dipartimento di Astronomia Padova Università degli Studi di Padova = University of Padua (Unipd) University of Exeter ASTEP (Antarctic Search for Transiting ExoPlanets) ANR-06-BLAN-0043,A STEP,A STEP: an Antarctic Search for Transiting Extrasolar Planets(2006) 2009-12-02 https://hal.science/hal-00437586 https://hal.science/hal-00437586/document https://hal.science/hal-00437586/file/Crouzet2009.pdf en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/0912.2644 hal-00437586 https://hal.science/hal-00437586 https://hal.science/hal-00437586/document https://hal.science/hal-00437586/file/Crouzet2009.pdf ARXIV: 0912.2644 info:eu-repo/semantics/OpenAccess https://hal.science/hal-00437586 2009 [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/preprint Preprints, Working Papers, . 2009 ftunivcotedazur 2024-06-03T14:15:27Z ASTEP South is the first phase of the ASTEP project (Antarctic Search for Transiting ExoPlanets). The instrument is a fixed 10 cm refractor with a 4kx4k CCD camera in a thermalized box, pointing continuously a 3.88° x 3.88° field of view centered on the celestial South pole. ASTEP South became fully functional in June 2008 and obtained 1592 hours of data during the 2008 Antarctic winter. The data are of good quality but the analysis has to account for changes in the point spread function due to rapid ground seeing variations and instrumental effects. The pointing direction is stable within 10 arcseconds on a daily timescale and drifts by only 34 arcseconds in 50 days. A truly continuous photometry of bright stars is possible in June (the noon sky background peaks at a magnitude R=15 arcsec-2 on June 22), but becomes challenging in July (the noon sky background magnitude is R=12.5 arcsec−2 on July 20). The weather conditions are estimated from the number of stars detected in the field. For the 2008 winter, the statistics are between 56.3 % and 68.4 % of excellent weather, 17.9 % to 30 % of veiled weather and 13.7 % of bad weather. Using these results in a probabilistic analysis of transit detection, we show that the detection efficiency of transiting exoplanets in one given field is improved at Dome C compared to a temperate site such as La Silla. For example we estimate that a year-long campaign of 10 cm refractor could reach an efficiency of 69 % at Dome C versus 45 % at La Silla for detecting 2-day period giant planets around target stars from magnitude 10 to 15. This shows the high potential of Dome C for photometry and future planet discoveries. [Short abstract] Report Antarc* Antarctic South pole South pole HAL Université Côte d'Azur Antarctic South Pole |