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Fig. 7

image

Values of ⟨ Ω ⟩ c and ⟨ Ω ⟩ e obtained by fitting Eq. (24) to the mode frequencies of model D computed with acor, assuming a rotation profile with ⟨ Ω ⟩ c/ 2π = 710 nHz and ⟨ Ω ⟩ c/ ⟨ Ω ⟩ e = 5. A random noise with an rms of 15 nHz was added to the mode frequencies and 1000 iterations were performed. The quantity βc ⟨ Ω ⟩ c + βe ⟨ Ω ⟩ e is conserved along the blue lines, where βc and βe correspond to mode a (dashed line) or mode b (dot-dashed line). The red cross indicates the actual values of ⟨ Ω ⟩ c and ⟨ Ω ⟩ e computed with Eqs. (19) and (20).

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