Selected properties of matter at high density and temperature. Equation of state and rates of beta processes and associated neutrino losses

Current data on relevant nuclear parameters and rates of -processes for a large number of nuclei are used to compute the key properties of matter which is assumed to be in nuclear statistical equilibrium at high density and temperature. For a range of density (2 < p < 15), temperature (3 < T9 < 15), and mean molecular weight per electron (2.0 < < 2.2), we give the following parameters which are needed to compute the postdetonation behavior of highly evolved exploding stars: molecular weight , net binding energy B, = - d ln /dt, and the rate of the neutrino losses Ev. We discuss the qualitative behavior of our results and the possible errors associated with them.