Empirical Models for Dark Matter Halos. I. Nonparametric Construction of Density Profiles and Comparison with Parametric Models

Merritt, David; Graham, Alister; Moore, Ben; Diemand, Jürg; Terzic, Balsa

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Empirical Models for Dark Matter Halos. I. Nonparametric Construction of Density Profiles and Comparison with Parametric Models

Date

2006

Authors

Merritt, David

Graham, Alister

Moore, Ben

Diemand, Jürg

Terzic, Balsa

Publisher

University of Chicago Press

Abstract

We use techniques from nonparametric function estimation theory to extract the density profiles, and their derivatives, from a set of N-body dark matter halos. We consider halos generated from ΛCDM simulations of gravitational clustering, as well as isol