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Fig. 13

image

Best-fit synthetic transit spectrum for WASP-19b for log (g) = 4.5 (blue) and log (g) = 3.2 (green), based on Drift-Marcs model atmosphere simulations for the star (Teff = 5475 K, log (g) = 4.43, [Fe/H] = 0.02) and for the planet. The Spitzer data points are plotted in red. We derive that the temperature of the planet is Teff = 2600 K.

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