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We present the results of a ground-based search for the secondary eclipse ofthe 3.3 Mjup transiting planet CoRoT-2b. We performed near infrared photometryusing the LIRIS instrument on the 4.2 m William Herschel Telescope, in the Hand K_s filters. We monitored the star around two expected secondary eclipsesin two nights under very good observing conditions. For the depth of thesecondary eclipse we find in H-band a 3 sigma upper limit of 0.17%, whereas wedetected a tentative eclipse with a depth of 0.16+-0.09% in the K_s-band. Thesedepths can be translated into brightness temperatures of T_H<2250 K and T_{K_s}= 1890(+260-350) K, which indicate an inefficient re-distribution of theincident stellar flux from the planet's dayside to its nightside. Our resultsare in agreement with the CoRoT optical measurement (Alonso et al. 09) and withSpitzer 4.5 and 8 micron results (Gillon et al. 09c).

Ground-based near-IR observations of the secondary eclipse of CoRoT-2b