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Dectection of Thermal Emission from WASP-3b

Published online by Cambridge University Press:  06 January 2014

J. W. Rostron  and
P. J. Wheatley
J. W. Rostron
Affiliation:
Department of Physics, University of Warwick, Coventry CV4 7AL, UK email:j.w.rostron@warwick.ac.uk
P. J. Wheatley
Affiliation:
Department of Physics, University of Warwick, Coventry CV4 7AL, UK email:j.w.rostron@warwick.ac.uk
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Abstract

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We report secondary eclipse detections of the transiting hot Jupiter WASP-3b at 3.6, 4.5 and 8.0μm using the Spitzer Space Telescope's Infrared Array Camera. We find planet-to-star flux ratios of 0.210+0.043−0.029, 0.281+0.012−0.011 and 0.332+0.050−0.034% in the three bands respectively. Comparisons with 1D atmospheric models show these values strongly favour inefficient redistribution of heat around the planet and also favour the presence of a temperature inversion. In addition, WASP-3 probes the cut-off region of a proposed activity-inversion correlation and we find evidence of atmospheric differences between this system and a similarly active system, WASP-4.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S299: Exploring the Formation and Evolution of Planetary Systems , June 2013 , pp. 305 - 306
Copyright
Copyright © International Astronomical Union 2013 

References

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