Joachim Ripken Universität Hamburg

Gamma-ray emission from dark matter neutralino clumps in the galactic halo (pdf)

In cosmological n-body simulations the galactic halos contain much more substructure than clusters observed in our galaxy. One possibility to explain this discrepancy is the existence of cold dark matter clumps not containing stars. If the dark matter consists of neutralinos, such dark matter clumps will emit high energy gamma-rays due to annihilation. The possibility to search and find such gamma ray emission with atmospheric Cherenkov telescopes such as the H.E.S.S. project in Namibia is investigated. Results of this study are presented.