Fig. C.1

Calculated models of proto-He WDs from Fig. 2 for M2 = 1.2 M⊙ (orange) and M2 = 1.4 M⊙ (blue). The black line is a fit to the data. It can also be derived analytically using a modified core mass-luminosity relation for low-mass evolved stars, combined with an assumed fixed amount of residual hydrogen (0.01 M⊙) to be burned. The red line separates models with and without flashes.
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