Image Details
Caption: Figure 4.
Helioseismically inferred (Basu et al. 2000) minus calculated sound speed differences vs. radius for solar models using the ATOMIC and OPAL opacities with the AGSS09 abundance mixture. The black dashed curves on either side of the OPAL profile show the magnitude of the uncertainty in the inferred sound-speed profile. The convection zone base radius is at ∼ 0.725 ﹩{R}_{\odot }﹩.
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