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Fig. 10.
Upper panel: abundance by mass of 4He, 12C, 16O, and 20Ne versus the outer mass coordinate for the ONe-core 1.29M⊙ DB WD model at Teff ∼ 20 000 K. Lower panel: logarithm of the squared Brunt-Väisälä and Lamb frequencies (ℓ = 1).
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