Fig. 9

Top: mass distribution models with the true and incorrect rotation curve of the simulated galaxy. Open symbols and the green dashed line denote the true rotation curve and the bulge contribution, filled symbols and a solid line represent the incorrect rotation curve and bulge contribution. For clarity, the remaining contribution from the gaseous and stellar disks plus dark matter is not shown. Bottom: error on the integrated mass of the bulge. ΔM = Minc − Mtrue, where Minc is the mass deduced from the incorrect bulge, and Mtrue the true bulge mass.
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