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Search for a Dark Matter annihilation signal from the Sagittarius dwarf galaxy with H.E.S.S

Dwarf Spheroidal galaxies are amongst the best targets to search for a Dark Matter annihilation signal. The annihilation of WIMPs in the center of Sagittarius dwarf spheroidal (Sgr dSph) galaxy would produce high energy gamma-rays in the final state. Observations carried out with the H.E.S.S. array of Imaging Atmospheric Cherenkov telescopes are presented. A careful modelling of the Dark Matter halo profile of Sgr dwarf was performed using latest measurements on its structural parameters. Constraints on the velocity-weighted cross section of Dark Matter particles are derived in the framework of Supersymmetric and Kaluza-Klein models.

preprint2007arXivOpen access
H. E. S. S. Collaboration:E. MoulinC. FarnierJ. -F. GlicensteinA. JacholkowskaL. RollandM. Vivier
astro-ph
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H. E. S. S. Collaboration:E. MoulinC. FarnierJ. -F. GlicensteinA. JacholkowskaL. RollandM. Vivier

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