47 citations · 171 across the 8 of their papers we have counts for
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astro-ph.GA2014★ 15 cited
A Very Simple Cusped Halo Model
N. W. Evans, A. A. Williams
We introduce a very simple model of a dark halo. It is a close relative of Hernquist's model, being generated by the same transformation but this time applied to the logarithmic po…
astro-ph.GA2014★ 20 cited
Hamiltonians of Spherically Symmetric, Scale-Free Galaxies in Action-Angle Coordinates
A. A. Williams, N. W. Evans, A. Bowden
We present a simple formula for the Hamiltonian in terms of the actions for spherically symmetric, scale-free potentials. The Hamiltonian is a power-law or logarithmic function of…