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 \pm 0.0020 % secondary eclipse centered on the orbital phase 0.494 \pm 0.006 .
Assuming a black-body emission of the planet , we estimate a surface brightness temperature of T _ { p,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 .