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Home All issues Volume 689 (September 2024) A&A, 689 (2024) A292 Full HTML
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Fig. 2.

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Sound speed profile as determined by Basu et al. (2009) compared to the profile predicted by SSM-MLT (blue) and by SSM-K1 (orange). The y-axis shows the relative difference in the squared sound speed between the observation c helio 2 $ c^2_\mathrm{helio} $ and the models c model 2 $ c^2_\mathrm{model} $: δ c 2 / c 2 =( c helio 2 − c model 2 )/ c helio 2 $ \delta c^2/c^2 = (c^2_\mathrm{helio}-c^2_\mathrm{model})/c^2_\mathrm{helio} $.

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