Fig. 8
The quality of the photometry parameters derived from HST images for cluster (left) and field (right) galaxies. We show histograms of the differences between structural parameters derived from bulge plus disk (B+D) and Sersic GIM2D fits to the HST ACS images of the galaxies with measured velocity dispersions. The mean, rms, and the widths at the 68% percentile of the distributions are given.
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