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Fig. 6.

image

Asymptotic period spacing, ΔΠa, for dipole modes (ℓ = 1) as a function of the effective temperature for the ONe evolutionary cooling sequences with masses 1.10, 1.16, 1.22, and 1.29 M. Crystallization was computed taking into account latent heat release and chemical rehomogenization caused by phase separation. The palette of colors corresponds to the fraction of crystallized mass (Mc/M). Vertical dotted lines show the Teff interval of the ZZ Ceti instability strip.

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