Mattes, Carlos (2018)
Long-Time Simulation of Core-Collapse Supernovae.
Technische Universität Darmstadt
Ph.D. Thesis, Primary publication
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Dissertation -
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Item Type: | Ph.D. Thesis | ||||
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Type of entry: | Primary publication | ||||
Title: | Long-Time Simulation of Core-Collapse Supernovae | ||||
Language: | English | ||||
Referees: | Arcones, Prof. Dr. Almudena ; Couch, Prof. Dr. Sean | ||||
Date: | 10 July 2018 | ||||
Place of Publication: | Darmstadt | ||||
Date of oral examination: | 15 October 2018 | ||||
Abstract: | Neutrinos play a crucial role in core-collapse supernovae. An adequate description of the neutrino propagation inside the star, and the neutrino interaction with the stellar material is essential for the simulation of these spectacular astrophysical events. We present the implementation of the Advanced Spectral Leakage (ASL) scheme into the simulation framework FLASH. ASL is based on previous gray leakage schemes, and in addition, it takes into account the spectral information of the neutrino distribution in optically thin regions. Moreover, it also models the trapped component of neutrinos in optically thick regions. We show that ASL is capable of producing reasonable results in a direct comparison with the more sophisticated neutrino treatments IDSA and M1 available in FLASH. Thereafter, we apply ASL in long-time simulations where we investigate the stability of our simulation setup and discuss the implications on the nucleosynthesis. We close our study with the performance preview of ASL in full 3D simulations which reveals its potential in computationally intensive simulations. |
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URN: | urn:nbn:de:tuda-tuprints-84388 | ||||
Classification DDC: | 500 Science and mathematics > 500 Science 500 Science and mathematics > 530 Physics |
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Divisions: | 05 Department of Physics 05 Department of Physics > Institute of Nuclear Physics 05 Department of Physics > Institute of Nuclear Physics > Theoretische Kernphysik 05 Department of Physics > Institute of Nuclear Physics > Theoretische Kernphysik > Kernphysik und Nukleare Astrophysik 05 Department of Physics > Institute of Nuclear Physics > Theoretische Kernphysik > Theoretical Nuclear Astrophysics Group |
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Date Deposited: | 20 Feb 2019 13:06 | ||||
Last Modified: | 09 Jul 2020 02:30 | ||||
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/8438 | ||||
PPN: | 445477091 | ||||
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