Final mass fraction ratio Mn/Cr, at a time of 100 yrs after the explosion, as a function of peak temperature in incomplete Si-b for different maximal densities (point type) and initial neutron excesses (color online). The maximal densities are given by either Eq. (6) (filled circles), or by a factor of two higher (triangles), or lower (crosses) than Eq. (6). The initial neutron excesses are η = 2.27 × 10^-4 (red), 9.09 × 10^-4 (blue), and 6.82   10^-3 (black), increasing from bottom to top.