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 study the prospects for detecting the annihilation products of Dark Matter[DM] in the framework of the two highest-resolution numerical simulationscurrently available, i.e. {\it Via Lactea II} and {\it Aquarius}. We propose astrategy to determine the shape and size of the region around the Galacticcenter that maximizes the probability of observing a DM signal, and we showthat although the predicted flux can differ by a factor of 10 for a given DMcandidate in the two simulation setups, the search strategy remains actuallyunchanged, since it relies on the angular profile of the annihilation flux, noton its normalization. We present mock gamma-ray maps that keep into account thediffuse emission produced by unresolved halos in the Galaxy, and we estimatethat in an optimistic DM scenario a few individual clumps can be resolved abovethe background with the Fermi-LAT. Finally we calculate the energy-dependentboost factors for positrons and antiprotons, and show that they are always of$\cal O$(1), and therefore they cannot lead to the large enhancements of theantimatter fluxes required to explain the recent PAMELA, ATIC, Fermi and HESSdata.

Implications of High-Resolution Simulations on Indirect Dark Matter Searches