Bibcode
Alonso, R.; Deeg, H. J.; Kabath, P.; Rabus, M.
Bibliographical reference
The Astronomical Journal, Volume 139, Issue 4, pp. 1481-1485 (2010).
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4
2010
Citations
31
Refereed citations
28
Description
We present the results of a ground-based search for the secondary
eclipse of the 3.3 M Jup transiting planet CoRoT-2b. We
performed near-infrared photometry using the LIRIS instrument on the 4.2
m William Herschel Telescope, in the H and Ks filters. We
monitored the star around two expected secondary eclipses in two nights
under very good observing conditions. For the depth of the secondary
eclipse, in the H band we found a 3σ upper limit of 0.17%, whereas
we detected a tentative eclipse with a depth of 0.16% ± 0.09% in
the Ks band. These depths can be translated into brightness
temperatures of TH < 2250 K and T_{K_s} =
1890^{+260}_{-350} K, which indicate an inefficient re-distribution of
the incident stellar flux from the planet's day side to its night side.
Our results are in agreement with the CoRoT optical measurement (Alonso
et al.) and with Spitzer 4.5 and 8 μm results (Gillon et al.).
Based on observations obtained with the William Herschel Telescope,
operated by the Isaac Newton Group of Telescopes and situated on the
Observatorio del Roque de los Muchachos of the Instituto de
Astrofísica de Canarias in La Palma, Spain.
Related projects
Helio and Astero-Seismology and Exoplanets Search
The principal objectives of this project are: 1) to study the structure and dynamics of the solar interior, 2) to extend this study to other stars, 3) to search for extrasolar planets using photometric methods (primarily by transits of their host stars) and their characterization (using radial velocity information) and 4) the study of the planetary
Savita
Mathur