Changes in the physics of the accretion phase owing to a LER: ignition curves (dashed lines), dynamical curve (dot-dashed lines), and track of central ρ vs. T during the hydrostatic evolution (solid lines). The top left panel shows the results obtained when the ¹²C+¹²C rate was computed following CF88, the other panels show the results adding a LER to that rate (see Table 1). For comparison purposes, in all the panels we have drawn the CF88 curves as thin lines. In the panels belonging to the LER-1.5-10.-1.0 and LER-1.3-0.1-1.0 rates, the track belongs to the evolution of the shell that first crosses the dynamical curve. We assumed a chemical composition made of 50% ¹²C and 50% ¹⁶O for both curves, while the hydrostatic ρ-T tracks were computed with the realistic chemical composition obtained from full stellar evolutionary calculations (FRANEC code).