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Fig. 2
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Deviation of fitting to simulated bulge Sérsic index nD,fit/nD,sim as a function of the faintness of the disk for objects with mr < 19.8. Top: multi-band fit. Bottom: single-band fit. The fainter a bulge within a given disk, the harder it is to fit. Horizontal lines show a (randomly chosen) allowed deviation of ± 20%.
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