<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Modeling of Silicon Burning during late stages of Stellar Evolution"^^ . "Recent studies with parametrized initial conditions have shown that perturbations in\r\nthe flow pattern of the progenitor might be a crucial ingredient to enable more robust\r\nexplosions in three-dimensional (3D) simulations of core-collapse supernovae. Those\r\nperturbations naturally develop during the hydrostatic silicon and oxygen burning phases\r\nin a star. However, the impact of perturbations in the progenitor on the dynamics of the\r\ncore-collapse supernova largely depends on their magnitude and spatial scale. Accurate\r\nmodeling of the progenitor is therefore necessary to obtain a realistic initial model.\r\n\r\nIn this work we present the first 3D simulations of silicon burning in full 4pi solid\r\nangle. In contrast to previous work, we use the native electron capture rates on 56Fe.\r\nWith our 3D simulation we managed to cover 154.41 s with 3.9×10^6 core-hours, which\r\nis still rather CPU-intensive. Future improvements, which would reduce the required\r\ncomputational resources, are discussed in the thesis. For the 3D simulations in this\r\nthesis, we use a standard Poisson gravity solver on a Cartesian grid, which was developed\r\nand implemented during the course of the thesis. Additionally, we implemented different\r\nmethods for solving Poisson’s equation, which also work for curvilinear grids and scale\r\nto a large number of processors."^^ . "2019" . . . . . . . "Aron"^^ . "Michel"^^ . "Aron Michel"^^ . . . . . . "Modeling of Silicon Burning during late stages of Stellar Evolution (PDF)"^^ . . . "phd_thesis_aron_michel.pdf"^^ . . . "Modeling of Silicon Burning during late stages of Stellar Evolution (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Modeling of Silicon Burning during late stages of Stellar Evolution (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Modeling of Silicon Burning during late stages of Stellar Evolution (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Modeling of Silicon Burning during late stages of Stellar Evolution (Other)"^^ . . . . . . "small.jpg"^^ . . . "Modeling of Silicon Burning during late stages of Stellar Evolution (Other)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #25877 \n\nModeling of Silicon Burning during late stages of Stellar Evolution\n\n" . "text/html" . . . "520 Astronomie"@de . "520 Astronomy and allied sciences"@en . . . "530 Physik"@de . "530 Physics"@en . .