The secondary eclipse of the transiting exoplanet CoRoT-2b
Alonso, R.; Guillot, T.; Mazeh, T.; et al.Aigrain, Suzanne; Alapini, Aude; Barge, P.; Hatzes, A.; Pont, F.
Date: 2009
Article
Journal
Astronomy and Astrophysics
Publisher
EDP Sciences
Publisher DOI
Related links
Abstract
We present a study of the light curve of the transiting exoplanet CoRoT-2b, aimed at detecting the secondary eclipse and measuring its depth. The data were obtained with the CoRoT satellite during its first run of more than 140 days. After filtering the low frequencies with a pre-whitening technique, we detect a 0.0060±0.0020% secondary ...
We present a study of the light curve of the transiting exoplanet CoRoT-2b, aimed at detecting the secondary eclipse and measuring its depth. The data were obtained with the CoRoT satellite during its first run of more than 140 days. After filtering the low frequencies with a pre-whitening technique, we detect a 0.0060±0.0020% secondary eclipse centered on the orbital phase 0.494±0.006. Assuming a black-body emission of the planet, we estimate a surface brightness temperature of Tp,CoRoT = 1910+90−100 K. We provide the planet’s
equilibrium temperature and re-distribution factors as a function of the unknown amount of reflected light. The upper limit for the
geometric albedo is 0.12. The detected secondary is the shallowest ever found.
Physics and Astronomy
Faculty of Environment, Science and Economy
Item views 0
Full item downloads 0