Density distributions of the different Milky Way models dependent on the height ɀ and the radius R away from the Galactic center. Two-dimensional slices through the origins of the three-dimensional simulation boxes are shown. The exponential halo model (left), the β-model halo (middle), and the multicomponent model (right) are described by Eqs. (2), (3), and (4–7), respectively. The models differ by several orders of magnitude in their density distribution.