Exoplanet WASP-14b is a highly irradiated, transiting hot Jupiter. Joshi et al. calculate an equilibrium temperature Teq of 1866 K for zero albedo and reemission from the entire planet, a mass of 7.3 +/- 0.5 Jupiter masses and a radius of 1.28 +/- 0.08 Jupiter radii. Its mean density of 4.6 g/cm3 is one of the highest known for planets with periods less than 3 days. We obtained three secondary eclipse light curves with the Spitzer Space Telescope. The eclipse depths from the best jointly fit model are 0.224% +/- 0.018% at 4.5 {\mu}m and 0.181% +/- 0.022% at 8.0 {\mu}m. The corresponding brightness temperatures are 2212 +/- 94 K and 1590 +/- 116 K. A slight ambiguity between systematic models suggests a conservative 3.6 {\mu}m eclipse depth of 0.19% +/- 0.01% and brightness temperature of 2242 +/- 55 K. Although extremely irradiated, WASP-14b does not show any distinct evidence of a thermal inversion. In addition, the present data nominally favor models with day night energy redistribution less than 30%. The current data are generally consistent with oxygen-rich as well as carbon-rich compositions, although an oxygen-rich composition provides a marginally better fit. We confirm a significant eccentricity of e = 0.087 +/- 0.002 and refine other orbital parameters.
@article{arxiv.1111.2363,
title = {Thermal Emission of WASP-14b Revealed with Three Spitzer Eclipses},
author = {Jasmina Blecic and Joseph Harrington and Nikku Madhusudhan and Kevin B. Stevenson and Ryan A. Hardy and Patricio Cubillos and Matthew Hardin and Christopher J. Campo and William C. Bowman and Sarah Nymeyer and Thomas J. Loredo and David R. Anderson and Pierre F. L. Maxted},
journal= {arXiv preprint arXiv:1111.2363},
year = {2013}
}