A simple model for the Milky Way halo is presented. It has a flat rotation curve in the inner regions, but the density falls off sharply beyond an outer edge. This truncated, flat rotation curve (TF) model possesses a rich family of simple distribution functions which vary in velocity anisotropy. The model is used to estimate the total mass of the Milky Way halo using the latest data on the motions of satellite galaxies and globular clusters at Galactocentric radii greater than 20 kpc. This comprises a data set of 27 objects with known distances and radial velocities, of which six...
Keywords: Galaxy: fundamental parameters; Galaxy: halo; Galaxy: kinematics and dynamics
Journal Article. 12536 words. Illustrated.
Subjects: Astronomy and Astrophysics
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