Key points are not available for this paper at this time.
The axisymmetric logarithmic potential introduced by Binney as a simple model of a galactic halo has an elementary distribution function depending on the two classical integrals of motion, binding energy E and angular momentum parallel to the symmetry axis Lz. The spherical limit is an isothermal distribution of two stellar populations whose masses and central densities are in the ratio 1:2.
N. W. Evans (Fri,) studied this question.