This article has an erratum: [https://doi.org/10.1051/0004-6361/201014703e]
The comparison between different estimations of the half-luminosity radii of all galaxies with HST photometry and a measured velocity dispersion. We plot the ratio of the harmonic radius (aebe)1/2 to the circularized effective radius Re of the best-fit HST B+D model (top), the ratio of the circularized effective radius Re(Ser) of the Sersic fit to Re (middle), and the ratio of the circularized effective radius Re(VLT) of the best-fit VLT B+D model to Re (bottom) as a function of 1 − be/ae. Symbols and color coding are as in Fig. 4.
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