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Fig. 2


Comparison of theoretical and observed SEDs of the Sun. Top: solar SEDs computed using 3D hydrodynamical CO5 BOLD (green solid line) and 1D LHD (red dotted line) model atmospheres, plotted together with the observed absolute solar flux spectrum from Neckel (1999, black solid line). Bottom: relative differences between the SEDs: observed–3D (black solid line) and 3D–1D (red dashed line, scale on the right y-axis).

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