Speaker
Ms
Lucia Rinchiuso
(CEA)
Description
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 in 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-years Galactic Center dataset of H.E.S.S. I together with a novel analysis technique allow to significantly improve the sensitivity.
New results will be presented.
Authors
Mr
Emmanuel Moulin
(CEA)
Ms
Lucia Rinchiuso
(CEA)