Emulation of the post-merging f₅ (upper panels) and stellar radius (R_⋆, lower panels) as a function of merger setup parameters, i.e., specific angular momentum (l, Eq. (6a)), specific kinetic energy (k, Eq. (6b)), mass ratio (M₁/M₂), dark to stellar mass ratio (M_DM/M_⋆), and pre-merger stellar size (R_1/2, Eq. (4)). Each of the first five columns gives the distribution of outputs of the merging process as a function of a single parameter. The distribution is obtained by emulating 10⁶ IC log-spaced distributed (see Table 1), and the gold line represents its median. The orange points are the individual simulations used to train the emulator. The red line (shaded region) gives the average (dispersion) of the observed values for Tucana II (Bechtol et al. 2015; Chiti et al. 2021). The last column shows the distribution of the emulated output normalized to the total number of inferences.