Fig. 1.
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Relative difference of the squared sound speed of the helioseismic measurement chelio and the solar calibrated models cmodel, using MLT (light blue), 1KM (light pink), and 3KM (green). The quantity on the y-axis is defined as δc2/c2 = (chelio2 − cmodel2)/chelio2. The crosses denote the radii of the data points from the helioseismic inversion.
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