Year: 2020
Type: article
Abstract: We provide a detailed description of the C himera code, a code developed to model core collapse supernovae (CCSNe) in multiple spatial dimensions. The CCSN explosion mechanism remains the subject of intense research. Progress to date demonstrates that it involves a complex interplay of neutrino production, transport, and interaction in the stellar core, three-dimensional stellar core fluid dynamics and its associated instabilities, nuclear burning, and the fundamental physics of the neutrino–stellar core weak interactions and the equations of state of all stellar core constituents—particularly, the nuclear equation of state associated with core nucleons, both free and bound in nuclei. C himera , by incorporating detailed neutrino transport, realistic neutrino–matter interactions, three-dimensional hydrodynamics, realistic nuclear, leptonic, and photonic equations of state, and a nuclear reaction network, along with other refinements, can be used to study the role of neutrino radiation, hydrodynamic instabilities, and a variety of input physics in the explosion mechanism itself. It can also be used to compute observables such as neutrino signatures, gravitational radiation, and the products of nucleosynthesis associated with CCSNe. The code contains modules for neutrino transport, multidimensional compressible hydrodynamics, nuclear reactions, a variety of neutrino interactions, equations of state, and modules to provide data for post-processing observables such as the products of nucleosynthesis, and gravitational radiation. C himera is an evolving code, being updated periodically with improved input physics and numerical refinements. We detail here the current version of the code, from which future improvements will stem, which can in turn be described as needed in future publications.
Authors: Stephen W. Bruenn, John M. Blondin, W. Raphael Hix, Eric J. Lentz, O. E. Bronson Messer, Anthony Mezzacappa, Eirik Endeve, J. Austin Harris, Pedro Marronetti, Reuben D. Budiardja, Merek A. Chertkow, Ching-Tsai Lee
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: G121915436, G122673668, G1286236842, G1414775356, G1632040200, G1645119126, G1677143136, G1751238421, G1799333409, G1816284028, G1863003419, G203625172, Core Collapse Supernova Gravitational Wave Signature Predictions Based on 3D Ab Initio Models with Increasing GR Realism, G2411683797, Orbiting binary black holes - From the post-Newtonian regime to the innermost stable circular orbit by combining initial data sequences and numerical evolutions, G275679244, G2821925151, Core Collapse Supernova Gravitational Wave Signature Predictions based on 3D Ab Initio Models with Increasing GR Realism, G2988778103, G3083819904, Collaborative Research: Supernova Simulation With CHIMERA, G365575497, G393689804, G419881185, G42916606, G4370606643, Collaborative Research: Supernova Simulation With CHIMERA, G4501827968, G498139845, G5076365615, G5296923526, G5375843722, Continued Exploration of the Nucleosynthesis of Core Collapse Supernovae, Collaborative Research: Supernova Simulation With Chimera, Numerical studies of binary black hole dynamics and waveforms, G7005983164, Numerical Studies of Compact-Object Binaries, G7186599013, Simulating Core-collapse Supernovae: from the Central Engine to the Stellar Surface, G7651947074, G805243471, G8269158468, G8337847945, G8906985441, Exploring the Nucleosynthesis of Core Collapse Supernovae in Multidimensions, G969889393
OpenAlex ID: W2890934384