Cosmic-ray propagation under consideration of a spatially resolved source distribution

Cosmic rays (CRs) are an integral component of the interstellar medium, producing broadband emission while interacting with other Galactic matter components like gas or magnetic fields. In addition to observations, numerical simulations CR propagation through Galaxy help increase level understanding transport and diffuse γ-ray as seen by different experiments. Up now, standard approach at modelling source distributions used input for such often rely on radial symmetry analytical functions rather than individual, observation-based sources. We aim a redefinition existing combining sources observed H.E.S.S. experiment simulated random sources, which follow density in Milky Way. As result, H.E.S.S.-inspired inferred. use PICARD code perform 3D-simulations nuclei electrons using our hybrid distribution models. Furthermore, also gamma-ray maps spectra, redefined models, evaluated regions compared each determine statistical scatter underlying distributions. find global consistency between models comparison previous simulations, only some localised fluctuations, e.g. spiral arms. This implementation three-dimensional model based observations enables new quality modelling. It offers possibilities more realistic scenarios beyond delivers meaningful results both arm interarm Galaxy. gives picture sky including structures from not just