Exoplanet detection capability of the COROT space mission

Details Exoplanet detection capability of the COROT space mission Exoplanet detection capability of the COROT space mission

2003-05-09

arxiv.org/abs/astro-ph/0305159v1

Astron.Astrophys. 405 (2003) 1137-1144

Astronomy and Astrophysics

Astrophysics

8 pages, 7 figures, accepted by A&A

Scientific paper

10.1051/0004-6361:20030675

COROT will be the first high precision photometric satellite to be launched with the aim of detecting exoplanets by the transit method. In this paper, we present the simulations we have carried out in order to assess the detection capability of COROT. Using the model of stellar population synthesis of the Galaxy developed at Besancon Observatory (Robin & Creze 1986) and a simple cross-correlation technique (Borde et al. 2001), we find that COROT has the capacity to detect numerous exoplanets, not only Jupiter and Uranus-class ones, but also hot terrestrial planets, if they exist. We show that small exoplanets should be mainly gathered around 14-15th magnitude K2-M2 dwarfs and giant exoplanets around 15-16th magnitude F7-G2 dwarfs. We study the effect of crowding and the impact of a high stellar variability noise that both reduce the detection capability of the instrument.

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