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Fig. 4


Histograms (solid curves) of the absolute vertical magnetic field component at the z0 level (top) and on the surface of τR = 1 (bottom) of the four (color-coded) model atmospheres. The bin size is 0.01 dex. The panels on the left-hand side show the area fraction per bin of magnetic field strength. The panels on the right-hand side show the fraction of magnetic flux per bin of magnetic field strength. The dotted curves show the cdf with the corresponding ordinate axis on the right-hand side. For a given threshold of magnetic field strength, the cdfs indicate the areal fraction (left panels) or fraction of magnetic flux (right panels) with a strength below that threshold. The histograms are based on the magnetic field maps of the full time series.

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