Indirect Dark Matter Searches Versus Cosmic Ray Transport Model Uncertainties

The assumption of isotropic diffusion has led to successful models for CR transport, capable of explaining the locally observed CR. spectra, as well as the diffuse Galactic gamma rays up to 1 GeV. These models currently form the basis for many indirect DM searches. Galactic winds with speeds of more than 100 km/s have been observed by ROSAT. Such wind speeds are incompatible with isotropic diffusion.Here, a transport model for Galactic CRs compatible with the wind velocities observed by ROSAT is presented. In such a model the contribution of antiprotons and positrons from Dark Matter annihilation to the local fluxes of CRs is reduced by a factor of O(10). We compare the model to the INTEGRAL observations of a large bulge/disk ratio, the WMAP haze and the EGRET excess, all of which have been interpreted in the context of Dark Matter annihilation (DMA) and comment on the DMA interpretation of the PAMELA and ATIC/PPB-BETS results.