<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Numerical Simulations of Magnetic Fields and Cosmic Rays in Galaxy Clusters"^^ . "We investigate the numerical modelling of relativistic protons, so-called cosmic rays, in a magnetised plasma. For the first time we combine two different components of a cosmological simulation code that so far have only been tested and employed independently of each other. By means of magnetohydrodynamic shock tube calculations in a gas that contains a constant fraction of relativistic particles we check for the correct physical behaviour of the combined numerical models. For this purpose we derive an analytical expression for the magnetosonic shock and rarefaction waves in the MHD Riemann problem and solve for the resulting system of equations using an iterative scheme. Comparing the theoretical and numerical solutions of a number of shock tube calculations we assess the physical correctness of the simulation. After successful testing we simulate the structure formation of three galaxy clusters including the consistent modelling of magnetic fields and cosmic rays. By means of analytical models we compute the X-ray and radio emission of the simulated clusters and reveal the temporal correlation between both quantities. Through a comparison with the strong lensing cross sections we demonstrate that the observable radio emission of galaxy clusters is directly connected to the occurrence of substructure in their dark matter halos and is thus triggered by strong merger shocks."^^ . "2008" . . . . . . . . "Irina"^^ . "Golombek"^^ . "Irina Golombek"^^ . . . . . . "Numerical Simulations of Magnetic Fields and Cosmic Rays in Galaxy Clusters (PDF)"^^ . . . "thesis.pdf"^^ . . . "Numerical Simulations of Magnetic Fields and Cosmic Rays in Galaxy Clusters (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Numerical Simulations of Magnetic Fields and Cosmic Rays in Galaxy Clusters (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Numerical Simulations of Magnetic Fields and Cosmic Rays in Galaxy Clusters (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Numerical Simulations of Magnetic Fields and Cosmic Rays in Galaxy Clusters (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Numerical Simulations of Magnetic Fields and Cosmic Rays in Galaxy Clusters (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #8750 \n\nNumerical Simulations of Magnetic Fields and Cosmic Rays in Galaxy Clusters\n\n" . "text/html" . . . "520 Astronomie"@de . "520 Astronomy and allied sciences"@en . .