Indirect search for dark matter with H.E.S.S.

The Universe is filled with non-baryonic Dark Matter which prevails the known form of matter (leptons and baryons). Indirect Dark Matter search methods are sensitive to self-annihilating Dark Matter candidates: among the spray of particles released in the self-annihilation process, gamma-rays and to some extent neutrinos can be used to trace regions with high overdensities of Dark Matter. The energy of these photons reaches up to the mass of the annihilating particles. For Dark Matter particles more massive than 100GeV, atmospheric Cherenkov telescopes become sensitive to these radiation energies while for less massive particles, space-based detection techniques are favorable (e.g. with the recently commissioned Fermi mission). Here, we present a summary of results obtained with the H.E.S.S. experiment located in Namibia using four 100m2 optical telescopes to detect and image air Cherenkov light from extensive air showers. The experiment has been used to search for annihilation radiation from various candidate regions with enhanced Dark Matter density including the Galactic center, Sagittarius dwarf, M87, and clumps in the Galactic halo.