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Detecting Earth-Uranus Class Planets with the Space Mission COROT

Published online by Cambridge University Press:  26 May 2016

A. Léger ,
A. Baglin ,
P. Barge ,
P. Bordé ,
C. Defaÿ ,
M. Deleuil ,
D. Rouan ,
J. Schneider  and
A. Vuillemin
A. Léger
Affiliation:
Institut d'Astronomie Spatiale – CNRS, Orsay, France
A. Baglin
Affiliation:
DESPA & DARC, Observatoire de Paris-Meudon, Meudon, France
P. Barge
Affiliation:
Laboratoire d'Astrophysique de Marseille – CNRS, Marseille, France
P. Bordé
Affiliation:
DESPA & DARC, Observatoire de Paris-Meudon, Meudon, France
C. Defaÿ
Affiliation:
Laboratoire d'Astrophysique de Marseille – CNRS, Marseille, France
M. Deleuil
Affiliation:
Laboratoire d'Astrophysique de Marseille – CNRS, Marseille, France
D. Rouan
Affiliation:
DESPA & DARC, Observatoire de Paris-Meudon, Meudon, France
J. Schneider
Affiliation:
DESPA & DARC, Observatoire de Paris-Meudon, Meudon, France
A. Vuillemin
Affiliation:
Laboratoire d'Astrophysique de Marseille – CNRS, Marseille, France

Abstract

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The space mission COROT can be considered as a DARWIN/TPF precursor, since it will contribute to the pre-DARWIN/TPF effort with its dedicated exoplanet program. COROT will survey more than 50 thousands stars, each one during five months, in order to detect transits of planets. Despite of the modest size of the telescope, the photon-noise limited performances may lead to the detection of several tens of “hot jupiters” and, more important, of a few planets of the Earth-Uranus class, i.e. with a size of typically 1.5 to 4 Earth radius. In the basic mode of operation (characterization of a planet by at least 3 detected transits), only planets with a short orbital period, and thus rather “hot” ones (T = 600K), should be discovered. However, one of the COROT's features is its capability to provide a wavelength dependent information, thanks to a prism in the optical path.

Type
Part V: Discovery and study of extrasolar planets - future
Information
Symposium - International Astronomical Union , Volume 202: Planetary Systems in the Universe – Observation, Formation and Evolution , 2004 , pp. 425 - 431
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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