# GLAST and Dark Matter Substructure in the Milky Way

## TL;DR

This paper evaluates GLAST's potential to detect gamma-rays from neutralino dark matter annihilation in the Milky Way, using high-resolution simulations to predict signals from subhalos and the Galactic center.

## Contribution

It introduces a detailed simulation-based analysis of dark matter substructure contributions to gamma-ray signals for GLAST detection.

## Key findings

- GLAST can potentially detect gamma-ray signals from the Galactic center.
- Several dark matter subhalos are predicted to be detectable.
- Simulated all-sky maps support the feasibility of detection.

## Abstract

We discuss the possibility of GLAST detecting gamma-rays from the annihilation of neutralino dark matter in the Galactic halo. We have used "Via Lactea", currently the highest resolution simulation of Galactic cold dark matter substructure, to quantify the contribution of subhalos to the annihilation signal. We present a simulated allsky map of the expected gamma-ray counts from dark matter annihilation, assuming standard values of particle mass and cross section. In this case GLAST should be able to detect the Galactic center and several individual subhalos.