An analytical approach to the dwarf galaxies cusp problem
Cosmology and Nongalactic Astrophysics
2010-12-27 v1
Abstract
An analytical solution for the discrepancy between observed core-like profiles and predicted cusp profiles in dark matter halos is studied. We calculate the distribution function for Navarro-Frenk-White halos and extract energy from the distribution, taking into account the effects of baryonic physics processes. We show with a simple argument that we can reproduce the evolution of a cusp to a flat density profile by a decrease of the initial potential energy.
Cite
@article{arxiv.1012.5336,
title = {An analytical approach to the dwarf galaxies cusp problem},
author = {Rafael S. de Souza and Emille E. O. Ishida},
journal= {arXiv preprint arXiv:1012.5336},
year = {2010}
}
Comments
6 pages, 2 figures