Fig. 2.

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Comparison between observed pairwise frequency separations of dipolar modes and the modelled ones. The dotted blue line corresponds to the observation, the continuous blue line used only Δν0 and ΔΠ1 as fitting constraints, and the light brown one also includes the gravity offset ϵg, 1. All models are computed with an initial composition of X0 = 0.70 and Z0 = 0.017.
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