Aachen 2019 – scientific programme
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T: Fachverband Teilchenphysik
T 87: Gamma-Astronomie II
T 87.9: Talk
Thursday, March 28, 2019, 18:05–18:20, S14
Modelling of gamma-ray emission from galactic colliding wind binaries — •Ruslan Konno1, Stefan Ohm1, and Jim Hinton2 — 1DESY, D-15738 Zeuthen, Germany — 2Max Planck Institut für Kernphysik, Heidelberg D-69029, Germany
Colliding wind binaries (CWBs) are binary stars with strong stellar winds that form shock regions and as it is known from the CWB Eta Carinae, these shocks can accelerate particles up to gamma-ray energies. This work aims to model CWBs as a gamma-ray source class with a radiative dynamical 3D code. Assuming two shocks and a hadronic interaction picture and by balancing acceleration and energy losses of particles, the model delivers flux predictions. Comparing predicted emission with the measurements made with the Large Area Telescope, the primary instrument on the Fermi Gamma-ray Space Telescope, likeliness of source detection will be tested and upper limits in case of non-detection will be placed. In this talk, the results will be presented and discussed.