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Fig. 13


Ratio of the absolute value of the two terms on the right-hand side of Eq. (5) as a function of the distance to the surface for the flux-tubes which carry the fastest and the slowest wind flow at three different instants of the cycles (the same as in Fig. 12). The black dotted line shows the value of this ratio for a vertically aligned and radially expanding wind flow (a Parker wind) for comparison.

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