Kinematics of Milky Way Satellites: Mass Estimates, Rotation Limits, and Proper Motions
Figure 1
The projected one-sigma error on the amplitude of the rotation parameter, , as defined in 4. The upper solid curve assumes structural parameters similar to that of Segue 1, while the lower dashed curve assumes structural parameters similar to that of Draco. Each curve assumes that the measurement uncertainty on each star is 2 km .
