Spherical Jeans models for the line-of-sight velocity dispersion of our NGC 3311 halo population data (with flag = 1 in Table A.1) as function of galactocentric distance to NGC 3311 for the isotropic (top panel) and partly radial (bottom panel) case. The green curve shows the baryonic component only (stellar mass with M/LR = 5.0 and mass of X-ray gas). The magenta curve is a MOND model. The red curve is the sum of the baryonic mass (green) and a Burkert halo. See text for more details on the models. In the upper panel the dashed line is an approximate fit to the upper envelope of the distribution.
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