http://arxiv.org/abs/1711.08634
The presence of dark matter in the Universe is nowadays widely supported by a large body of astronomical and cosmological observations. The central region of the Milky Way is expected to harbor a large amount of dark matter. Very-high-energy (>100 GeV) gamma-ray observations with the H.E.S.S. array of Imaging Atmospheric Cherenkov Telescopes are powerful probes to look for self-annihilations of dark matter particles toward the Galactic Centre. A new search for a dark matter signal has been carried out on the full H.E.S.S.-I dataset of 2004-2014 observations with a 2D-binned likelihood method using spectral and spatial properties of signal and background. Updated constraints are derived on the velocity-weighted annihilation cross section. Higher statistics from the 10-year Galactic Center dataset of H.E.S.S. I together with a novel analysis technique allow to significantly improve the sensitivity. New results are presented.
L. Rinchiuso, E. Moulin and S%2E. Collaboration-H%2E-E%2E-S%2E
Mon, 27 Nov 2017
70/78
Comments: Proceeding for Rencontres de Moriond – VHEPU, March 2017
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