Ratio (in logarithmic scale) of the ion thermal wavelength to the WS cell volume (top panels) and to the reduced volume (bottom panels) as a function of the baryonic density n_B for the BSk24 model, using three different prescriptions for the ion effective mass, at two different temperatures: k_BT = 1 MeV (left panels) and k_BT = 2.0 MeV (right panels). The results are obtained at beta equilibrium using the translational energy , Eq. (48), accounting for the in-medium correction.