Temperature profiles over time of individual representative model sequences. M_r is the mass coordinate, t the time since the start of the accretion phase. The color bar indicates temperature and the black line corresponds to the current total mass of the WD. All model sequences were computed with initial parameters of M_init = 0.54 M_⊙, log (L_init/L_⊙) = 0 and f_acc = 1.0. Model sequence A) (L00510-1) uses a mass accretion rate of Ṁ = 1 × 10^-8M_⊙/ yr, model B) (L00510-2) Ṁ = 2 × 10^-8M_⊙/ yr and model C) (L00510-4) Ṁ = 4 × 10^-8M_⊙/ yr. It should be noted that the temperature color scale was restricted to the indicated range. Temperatures higher and lower than the limits do occur. The gap visible in plot B) is due to a subsequence of models computed with a larger time step than the rest of the sequence, resulting in a physically irrelevant discontinuity of the available data.