The figure shows the effect of applying a Gaussian radius prior when modeling with the iron/silicate grid. The prior shown by the green line is centered on the radius given by evolutionary models: 1.29 ﹩{R}_{\mathrm{Jup}}﹩ (Marley et al. 2007; Fortney et al. 2008). Also plotted are the likelihood (black) and posterior distribution (red).