Notes. Columns: (1) family of merger models using this combination of morphological types of the progenitors. (2) Maximum value of the external radii of the remnants resulting from this family of models, visually determined from the mock K-band images of the stellar remnants. (3) Total dynamical mass of the remnants resulting from the merger of these progenitor types (dark matter + old stars + hybrid material), in simulation units (equal to 2.25 × 10⁹M_⊙). (4) Characteristic orbital time period of a particle at R = R_max in these remnants. (5) Minimum relaxing time period required for the remnants of this family of mergers to be considered in dynamical equilibrium (see Sect. 3.3).