English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We present a study of the ability of the Fermi Gamma-ray Space Telescope todetect dark-matter annihilation signals from the Galactic subhalos predicted bythe Via Lactea II N-body simulation. We implement an improved formalism forestimating the boost factor needed to account for the effect of dark-matterclumping on scales below the resolution of the simulation, and we incorporate adetailed Monte Carlo simulation of the response of the Fermi-LAT telescope,including a simulation of its all-sky observing mode integrated over a ten yearmission. We find that for WIMP masses up to about 150 GeV in standardsupersymmetric models with velocity-averaged cross section 3*10^-26 cm^3 s^-1,a few subhalos could be detectable with >5 standard deviations significance andwould likely deviate significantly from the appearance of a point source.

Fermi-LAT Sensitivity to Dark Matter Annihilation in Via Lactea II Substructure