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Empirical models for Dark Matter Halos. I. Nonparametric Construction of Density Profiles and comparison with Parametric Models
(American Astronomical Society - The Astronomical Journal, 2006-12)
We use techniques from nonparametric function estimation theory to extract the density pro-
files, and their derivatives, from a set of N-body dark matter halos. We consider halos generated
from ΛCDM simulations of ...
Algorithmic regularization with velocity-dependent forces
(Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2006-05)
Algorithmic regularization uses a transformation of the equations of motion such that
the leapfrog algorithm produces exact trajectories for two-body motion as well as regular
results in numerical integration of the ...