Comparison of simulated galaxies of Mod-B described by Eqs. (31)–(36) with the observational data of MaNGA (see Blanton et al. 2017, and references therein) and WINGS (see text for descriptions). Only E and S0 galaxies are considered. Left panel: I_e − σ plane. Right panel: L − σ plane with the MaNGA and WINGS data, and our artificial galaxy mergers. In the two panels, the colour-coding and the meaning of the symbols are the same as in Fig. 15. The parameters η, ϵ, λ, and θ have the same values as in Fig. 15.