Fig. 13.
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GOLF (with a Solar-SONG observational window, black) and Solar-SONG (orange) normalised PSDs between 1700 and 2200 μHz. The normalisation has been performed by dividing each PSD by its median value in the 1700–2200 μHz region. The frequencies fitted in the Solar-SONG spectrum are marked by vertical lines with a colour-coding related to the mode degree: blue, red, light blue, and pink for ℓ = 0, 1, 2, and 3, respectively.
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