Abstract:

Gamma-ray GeV excess from the Galaxy center region is widely considered as a possible signal of dark matter annihilation, however details of this excess depend on the choice of predefined spatial templates which model the background of gamma-ray emissions from astrophysical processes, like cosmic ray interactions. Here results, from a novel non-parametric and template-free method in which the astrophysical components are identified solely by their spectral and morphological properties, are presented.