8 citations · 8 across the 1 of their papers we have counts for
3 papers
astro-ph.CO2011★ 8 cited
Accurate Masses for Navarro-Frenk-White Dark Matter Haloes
N. W. Evans, J. An, A. Deason
We consider the problem of estimating the virial mass of a dark halo from the positions and velocities of a tracer population. Although a number of general tools are available, mor…
astro-ph2006
The Chang-Refsdal Lens Revisited
J. An, N. W. Evans
This paper provides a complete theoretical treatment of the point-mass lens perturbed by constant external shear, often called the Chang-Refsdal lens. We show that simple invariant…
astro-ph2005
Distribution function of the dark matter
N. W. Evans, J. An
There is good evidence from N-body simulations that the velocity distribution in the outer parts of halos is radially anisotropic, with the kinetic energy in the radial direction r…