183 citations · 792 across the 18 of their papers we have counts for
19 papers
Charting Galactic Accelerations: When and How to Extract a Unique Potential from the Distribution Function
J. An, A. Naik, N. W. Evans +1
The advent of datasets of stars in the Milky Way with six-dimensional phase-space information makes it possible to construct empirically the distribution function (DF). Here, we sh…
On the condition for the central caustic degeneracy of the planetary microlensing
J. An
It is shown that the linear approximation of the central caustic for the planetary () microlensing is valid if (where is the mass ratio and is the…
Reflection symmetries of Isolated Self-consistent Stellar Systems
J. An, N. W. Evans, J. L. Sanders
Isolated, steady-state galaxies correspond to equilibrium solutions of the Poisson--Vlasov system. We show that (i) all galaxies with a distribution function depending on energy al…
Cosmic Constraints to wCDM Model from Strong Gravitational Lensing
Jie An, Baorong Chang, Lixin Xu
In this paper, we study the cosmic constraint to CDM model via strong gravitational lensing systems which are complied from SLACS, BELLS, LSD and SL2S surveys, where the r…
On the Alignment of the Stress Tensor in Galaxies
N. W. Evans, J. L. Sanders, A. A. Williams +3
We show that, provided the principal axes of the second velocity moment tensor of a stellar population are generally unequal and are oriented perpendicular to a set of orthogonal s…
The Doubloon Models of Dark Haloes
N. W. Evans, J. An, A. Bowden +1
A family of spherical halo models with flat circular velocity curves is presented. This includes models in which the rotation curve has a finite central value but declines outwards…