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Sunday, September 18, 2022

Simulation Aids Search for the Origin of Cosmic Rays

Testing theoretical models,  often done with prospective simulation.

Simulation Aids Search for the Origin of Cosmic Rays

By Ruhr-Universität Bochum (Germany)

September 15, 2022

An international research team created a computer program to simulate the propagation of cosmic rays, to help in the search for their sources.

Julien Dörner at Germany's Ruhr-Universität Bochum said, "Our program CRPropa enables us to trace the trajectories of particles from their formation to their arrival on Earth—and this for all energies that we can observe from Earth. We can also fully account for the interaction of the particles with matter and photon fields in the universe."

CRPropa also can model the signatures of neutrinos and gamma rays generated in cosmic ray interactions.

Karl-Heinz Kampert at Germany's University of Wuppertal said, "We can develop a theoretical model that describes the transition from cosmic rays from our own galaxy to a fraction coming from distant galaxies and compare it with observations."

From Ruhr-Universität Bochum (Germany)

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