The Galactic positron flux and dark matter substructures
Astrophysics
2010-10-27 v2 High Energy Physics - Phenomenology
Abstract
In this paper we calculate the Galactic positron flux from dark matter annihilation in the frame of supersymmetry, taking the enhancement of the flux by existence of dark matter substructures into account. The propagation of positrons in the Galactic magnetic field is solved in a realistic numerical model GALPROP. The secondary positron flux is recalculated in the GLAPROP model. The total positron flux from secondary products and dark matter annihilation can fit the HEAT data well when taking a cuspy density profile of the substructures.
Cite
@article{arxiv.astro-ph/0611872,
title = {The Galactic positron flux and dark matter substructures},
author = {Qiang Yuan and Xiao-Jun Bi},
journal= {arXiv preprint arXiv:astro-ph/0611872},
year = {2010}
}
Comments
16 pages, 10 figures, accepted by JCAP