Speaker
Description
The origin of high-energy of cosmic-rays (CRs) is yet not completely solved. Due to the accessibility, Galactic sources give us opportunities to investigate the ambient condition of potential sources.
The Galactic Center, on the one hand, shows a peculiar non-thermal emission. On the other hand, the crowded and emissively active vicinity makes modeling more challenging. Previous works discussed the origin of the diffuse $\gamma$-ray emission detected by H.E.S.S. without considering the magnetic field, although, the impact on the CR spatial profile is significant.
In this work, we use for the first time collective and recently developed 3D models of the ambient condition, including the magnetic field configuration, mass distribution, and the photon field. In doing so and using the propagation tool CRPropa, we can involve all relevant interaction processes in the TeV- PeV regimes such as hadronic pion production, inverse Compton scattering, and $\gamma$-ray attenuation by electromagnetic pair production.
In order to identify the real source, we further present five different source set-ups based on observational hints. Hereafter, we compare our results with the measured spatial as well as energy spectra.
