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Fig. 15.


Spherical Jeans models for the line-of-sight velocity dispersion of several tracer populations as function of galactocentric distance to NGC 3311 for the isotropic (top panel) and partly radial (bottom panel) case and different core radii as indicated (blue lines). The asterisks mark the upper envelope of the stellar light σLOS distribution from our data (dashed line in Fig. 14). Filled circles represent the velocity dispersions of globular clusters, and squares the velocity dispersion of Hydra I cluster galaxies. The dashed (green) lines are MOND models. For comparison, we also show as red lines the cored Burkert haloes from Richtler et al. (2011) for the extreme core radii.

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