Emission spectra of same four planets as in Fig. 6, but now showing the differences caused by fractional vaporisation. Coloured curves indicate atmospheres with no fractional vaporisation, while black curves show atmospheres vaporised to 60%. All cases are for Bulk Silicate Earth melt composition shown at R = 800. Corresponding temperature profiles for each case are shown in the inset. Blue shaded regions now denote blackbody emission boundaries between the converged surface temperature of non-evolved and evolved models.