Density at peak temperature (ρ_peak) versus peak temperature (T_peak, in units of 10⁹ K) in the M_Ch delayed-detonation model 5p0_Z0p014 (filled circles) and the sub-M_Ch detonation models 1p06_Z2p25e-2 (M_WD = 1.06 M_⊙, filled squares) and 0p88_Z2p25e-2 (M_WD = 0.88 M_⊙, filled triangles). The wide vertical band denotes the transition between incomplete Si burning and complete burning to NSE. The NSE region is further subdivided into ‘normal’ and ‘alpha-rich’ freeze-out regimes. The width of the bands correspond to variations in the post-burn cooling time scale (Woosley et al. 1973; see also Lach et al. 2020, their Fig. 1).