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

The presence of dark matter in the Universe is nowadays widely supported by alarge body of astronomical and cosmological observations. One of the besttargets to look for dark matter particle self-annihilation into very highenergy gamma-rays is the Galactic Center (GC) region. A search for annihilatingdark matter in the central 300 parsecs around the GC is performed with theH.E.S.S. array of ground-based Cherenkov telescopes. Using the full H.E.S.S.- Idataset (2004-2014) for this region, new constraints are derived on thevelocity-weighted annihilation cross section with a 2D likelihood method,taking advantage of differences in both spectral and spatial morphologies ofsignal and background. Higher statistics from the 10-years GC dataset ofH.E.S.S. I together with a novel analysis technique, allow to improve thepresent constraints by a factor of 2 for a DM particle mass of 1 TeV. Theexpected improvement in sensitivity of the new analysis technique, applied toperformances of the H.E.S.S.-II array, is also presented.

Dark matter search in the inner Galactic halo with H.E.S.S. I and H.E.S.S. II