Height distribution of chemical species detected expressed in planetary radii as a function of atmospheric temperature. H I and Ca II lie on top, but still well below the Roche (1.95 R_p). The other metals are distributed at lower altitudes. The dashed black line represents the temperature profile presented by Fossati et al. (2021) accounting for NLTE effects. The full lines representing each species height distribution are shifted with respect to the dashed black line for clarity.