Stellar spectra for the host stars following Kozakis et al. (2022) (top) along with the cross-sections used by Atmos of relevant species (bottom). The ratio of far-UV (FUV) to near-UV (NUV) flux is important in driving atmospheric chemistry, and is indicated by the colored backgrounds. The abrupt cutoff of NO₂, N₂O, and HO₂ cross-sections is due to the extremely low photolysis rates of those species at shorter wavelengths due to absorption from other atmospheric species (i.e.. CO₂).