Würzburg 2018 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 29: Kosmische Strahlung II

T 29.2: Vortrag

Dienstag, 20. März 2018, 16:50–17:05, Philo-HS6

Modeling the cosmic ray transport in the Galactic Center using gamma-ray data and prediction of the neutrino flux — •Mehmet Guenduez and Julia Becker Tjus — Ruhr-Universität Bochum , Bochum, Germany

In April 2016 the H.E.S.S. collaboration published the detection of a high energy gamma-ray flux from the Galactic Center. The H.E.S.S. results suggest a single source (the supermassive blackhole SgrA*) and a hadronic origin, which would require proton energies in PeV-range. In this work, we found a realistic transport model based on the analytical solution for protons which considers the radial dependency, catastrophic and continuous losses. The model is specified for the Galactic Center and considers a single source (SgrA*) of the diffuse flux as well as SgrA East and SgrA* in combination. Additionally, different radial dependencies of the target particles are considered, so that the radial dependency of the gamma-ray luminosity of H.E.S.S. and Fermi are explained. In this talk, the model is presented together with the best fit to the gamma-ray data, its interpretation and the prediction of the expected neutrino flux.