Fig. 14
Best-fitting Sérsic exponent η vs. μlim for the SBPs in Fig. 13. The thick-gray curve and the filled squares show, respectively, the variation in η for the observed R band SBP of I Zw 18 and the two-component approximation to it, labeled core+env1. The variation in η with μeff for the synthetic SBP core+env2 is shown with filled circles.
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