Dark Matter Annihilation in the light of EGRET, HEAT, WMAP, INTEGRAL and ROSAT

Understand

The ROSAT Galactic wind observations confirm that our Galaxy launches supernova driven Galactic winds with wind speeds of about 150 km/s in the Galactic plane.

• Galactic winds of this strength are incompatible with current isotropic models for Cosmic Ray transport.
• In order to reproduce our local CRs in the presence of Galactic winds, charged CRs are required to be much more localized than in the standard isotropic GALPROP models.
• This requires that anisotropic diffusion is the dominant diffusion mode in the interstellar medium, particularly that the diffusion in the disk and in the halo are different.