Energy released and NSE temperature for burning C/O as functions of density of the fuel for isochoric self‐heating calculations with (solid lines) and without (dashed lines) electron screening and Coulomb corrections. For comparison, the contour corresponding to the condition (for ﹩Y_{e}=0.5﹩) that the nuclear statistical equilibrium consists of equal parts by mass of ⁴He and ⁵⁶Ni is shown (dotted line).