Left: mean diffuse SB profiles in the Ks wide-field image before (blue) and after (red) subtraction of the appropriately scaled Pa α emission (green; multiplied by arbitrary factor to optimise the plot). The straight black line is the best power-law fit to the red data within R ≤ 25′′ pc (corresponding to R ≲ 1 pc for a GC distance of 8 kpc).
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