Details of models created for the CCF computation. Left: pressure-temperature (P-T) profile assumed for the dayside of WASP-76 b to create the templates of Fe I and Fe II, hereafter PT01 (see Sect. 3.2), based on the GCM work of Wardenier et al. (2021, 2023). Right: petitRADTRANS models for Fe I (top) and Fe II (bottom), assuming the thermal profile PT01. The shaded regions are excluded from the CCF calculation due to telluric residuals on the empirical spectra.