for all models from our grid (see Table B.1), as a function of velocity. Black represents results from FASTWIND v11 and green results from CMFGEN. To improve the visibility, all Γ values have been multiplied with factors 10ⁱ, i ∈ [0,4], from bottom to top. The dashed-dotted red lines correspond to Γ_e(r) for pure electron scattering (its local variation relates to changes in the ionisation structure, mostly of H and He), and the dashed lines indicate, for each model, the relation Γ_tot = 1. We note that all models displayed here have been calculated with a fixed ß = 1 velocity law, i.e. they are not self-consistent. See text.