Fig. 2
Comparison of the four surface brightness profiles used for later analysis: Our combined profile (black asterisks), the smoothed profile obtained from a fit with Chebychev polynomials (red plus signs), the profile from Noyola & Gebhardt (2006) (cyan diamonds), and the Trager et al. (1995) profile (green triangles, Chebychev fit on photometric points). The dotted vertical line denotes the core radius of 16.8′′ (Harris 1996).
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