Intrinsic velocity as a function of radius from Equation (1), for 2000 simulations of v_a, r_e, and r_t/r_e, randomly perturbed around their uncertainties (black lines). The solid red line shows the best-fit model, and the 1σ and 2σ levels of v(r) are indicated in pink and red, respectively. The dashed line indicates the measured r_e, with the 1σ and 2σ levels indicated with grey bands. All 10 galaxies have significant rotation from the 2σ rotation curve limits.