Fig. 12

Dependence of the dimensionless ratio on time t/τ and radius r in terms of the solar radius. The top panel shows a narrow band in θ in the northern hemisphere and the bottom one a thin band in the southern hemisphere. In both plots we have also averaged in latitude from 20° to 28°. Dark blue stands for negative and light yellow for positive values. The dotted horizontal lines show the location of the surface at r = R.
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