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Inferring heat recirculation and albedo for exoplanetary atmospheres: Comparing optical phase curves and secondary eclipse data

P. von Paris 1 P. Gratier 2 Franck Selsis 1 Pascal Bordé 1
1 ECLIPSE 2016
LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]
2 AMOR 2016
LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]
Abstract : Basic atmospheric properties such as albedo and heat redistribution between day and nightside have been inferred for a number of planets using observations of secondary eclipses and thermal phase curves. Optical phase curves have not yet been used to constrain these atmospheric properties consistently. We re-model previously published phase curves of CoRoT-1b, TrES-2b and HAT-P-7b and infer albedos and recirculation efficiencies. These are then compared to previous estimates based on secondary eclipse data. We use a physically consistent model to construct optical phase curves. This model takes Lambertian reflection, thermal emission, ellipsoidal variations and Doppler boosting into account. CoRoT-1b shows a non-negligible scattering albedo (0.11
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https://hal.archives-ouvertes.fr/hal-01244746
Contributor : Marie-Paule Pomies <>
Submitted on : Wednesday, December 16, 2015 - 11:04:40 AM
Last modification on : Friday, April 5, 2019 - 8:24:00 PM

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P. von Paris, P. Gratier, Franck Selsis, Pascal Bordé. Inferring heat recirculation and albedo for exoplanetary atmospheres: Comparing optical phase curves and secondary eclipse data. Astronomy and Astrophysics - A&A, EDP Sciences, 2016, 587, pp.id.A149. ⟨10.1051/0004-6361/201526297⟩. ⟨hal-01244746⟩

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