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Proceedings Paper

ASTEP 400: a telescope designed for exoplanet transit detection from Dome C, Antarctica
Author(s): Jean-Baptiste Daban; Carole Gouvret; Tristan Guillot; Abdelkrim Agabi; Nicolas Crouzet; Jean-Pierre Rivet; Djamel Mekarnia; Lyu Abe; Erick Bondoux; Yan Fanteï-Caujolle; François Fressin; François-Xavier Schmider; Franck Valbousquet; Pierre-Eric Blanc; Auguste Le Van Suu; Heike Rauer; Anders Erikson; Frederic Pont; Suzanne Aigrain
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Paper Abstract

The Concordia Base in Dome C, Antarctica, is an extremely promising site for photometric astronomy due to the 3- month long night during the Antarctic winter, favorable weather conditions, and low scintillation. The ASTEP project (Antarctic Search for Transiting ExoPlanets) is a pilot project which seeks to identify transiting planets and understand the limits of visible photometry from this site. ASTEP 400 is an optical 40cm telescope with a field of view of 1° x 1°. The expected photometric sensitivity is 1E-3, per hour for at least 1,000 stars. The optical design guarantees high homogeneity of the PSF sizes in the field of view. The use of carbon fibers in the telescope structure guarantees high stability. The focal optics and the detectors are enclosed in a thermally regulated box which withstands extremely low temperatures. The telescope designed to run at -80°C (-110°F) was set up at Dome C during the southern summer 2009- 2010. It began its nightly observations in March 2010.

Paper Details

Date Published: 10 August 2010
PDF: 9 pages
Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77334T (10 August 2010); doi: 10.1117/12.854946
Show Author Affiliations
Jean-Baptiste Daban, Univ. de Nice Sophia Antipolis (France)
Carole Gouvret, Univ. de Nice Sophia Antipolis (France)
Tristan Guillot, Observatoire de la Côte d'Azur (France)
Abdelkrim Agabi, Univ. de Nice Sophia Antipolis (France)
Nicolas Crouzet, Observatoire de la Côte d'Azur (France)
Jean-Pierre Rivet, Observatoire de la Côte d'Azur (France)
Djamel Mekarnia, Univ. de Nice Sophia Antipolis (France)
Lyu Abe, Univ. de Nice Sophia Antipolis (France)
Erick Bondoux, Univ. de Nice Sophia Antipolis (France)
Yan Fanteï-Caujolle, Univ. de Nice Sophia Antipolis (France)
François Fressin, Harvard-Smithsonian Ctr. for Astrophysics (United States)
François-Xavier Schmider, Univ. de Nice Sophia Antipolis (France)
Franck Valbousquet, Optique et Vision (France)
Pierre-Eric Blanc, Observatoire de Haute-Provence (France)
Auguste Le Van Suu, Observatoire de Haute-Provence (France)
Heike Rauer, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Anders Erikson, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Frederic Pont, Exeter Observatory (United Kingdom)
Suzanne Aigrain, Exeter Observatory (United Kingdom)

Published in SPIE Proceedings Vol. 7733:
Ground-based and Airborne Telescopes III
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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