Column density of various species as a function of the zenith angle of the planet for a Bulk-Silicate-Earth composition (left panel) and a komitiite composition (right panel) based on calculations in Miguel et al. (2011). The temperature as a function of zenith angle assumed for this plot is based on the our best fit model presented in Kreidberg & Loeb (2016) without heat redistribution (F = 0). It assumes that the temperature at the substellar point is K at a zenith angle of z = 90°, with S being the insolation, A_B the Bond albedo and σ the Stefan–Boltzmann constant. The species in the legend are sorted by the column density at the substellar point in descending order.