July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

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

Aug 3, 2015, 11:30 AM
Yangtze 2 (World Forum)

Yangtze 2

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution DM-EX Parallel DM 04


Valentin lefranc (CEA)


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 target to look for dark matter self-annihilation into very high energy gamma-rays is the Galactic center region. A search for such emission is performed with the ground-based H.E.S.S. array of Cherenkov telescopes toward the central 150 parsecs around the Galactic center. Constraints are derived on the velocity-weighted annihilation cross section thanks to a 2D likelihood method using both spectral and spatial morphologies of signal and background. Combining this new data analysis method together with the new second-phase, 5-telescope array performances, searches for annihilating dark matter with H.E.S.S. observations are presented.
Collaboration H.E.S.S.
Registration number following "ICRC2015-I/" 1210

Primary author


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