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

4Citations
Citations of this article
8Readers
Mendeley users who have this article in their library.

Abstract

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

Cite

CITATION STYLE

APA

Lefranc, V., & Moulin, E. (2015). Dark matter search in the inner Galactic halo with H.E.S.S. i and H.E.S.S. II. In Proceedings of Science (Vol. 30-July-2015). Proceedings of Science (PoS). https://doi.org/10.22323/1.236.1208

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free