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Fig. 3

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Phase curves in different spectral bands for a non phase-locked CoRoT-7b with a hypothetical day of 10.2 h and an albedo of 0.1. From purple to red, wavelengths of resp. 0.8 μm, 1.125 μm, 1.375 μm, 1.75 μm, and 3.5 μm. The amplitude has been normalized by the stellar flux. As expected (II.4), the phase curve at a longer wavelength shows a clear delay with respect to the one at the shortest wavelength. The zero on the phase axis corresponds to the secondary transit (the observer-star-planet are aligned in this order). The transit and secondary transit signals are not modeled on this figure.

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