Fig. 5
Resulting planet-star radius ratio Rp/Rstar as function of wavelength, indicating the 1σ error bars. The solid line indicates the least-squares fit of a Rayleigh-scattering slope to the data, using Eq. (4). The dashed lines indicate the 1σ error margin on the slope. Note that the abscissae axis is in a logarithmic scale. The linear fit yields a gradient of −0.0064 ± 0.0026 ln[Å]-1, corresponding to a temperature of T = 2300 ± 900 K.
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