Three-Dimensional Hydrodynamic Simulations of Convective Nuclear Burning In Massive Stars Near Iron Core Collapse

Abstract

Non-spherical structure in massive stars at the point of iron core collapse can have a qualitative impact on the properties of the ensuing core-collapse supernova explosions and the multi-messenger signals they produce. Strong perturbations can aid successful explosions by strengthening turbulence in the post-shock region. Here, we report on a set of $4\pi$ 3D hydrodynamic simulations of O- and Si-shell burning in massive star models of varied initial masses using MESA and the FLASH simulation framework. We evolve four separate 3D models for roughly the final ten minutes prior to, and including, iron core collapse. We consider initial 1D MESA models with masses of 14-, 20-, and 25 $M_{\odot }$ to survey a range of O/Si shell density and compositional configurations. We characterize the convective shells in our 3D models and compare them to the corresponding 1D models. In general, we find that the angle-average convective speeds in our 3D simulations near collapse are three to four times larger than the convective speeds predicted by MESA at the same epoch for our chosen mixing length parameter of ${\alpha }_{\mathrm{MLT}}=1.5$. In three of our simulations, we observe significant power in the spherical harmonic decomposition of the radial velocity field at harmonic indices of $\ell =1-3$ near collapse. Our results suggest that large-scale modes are common in massive stars near collapse and should be considered a key aspect of pre-supernova progenitor models.

arXiv commentSubmitted to AAS Journals. 19 pages, 19 figures, all four 3D CCSN progenitor models available publicly at https://zenodo.org/record/4895094#.YOYPwhNKjzg

References in corpus (42)

• Modules for Experiments in Stellar Astrophysics (MESA)
• Modules for Experiments in Stellar Astrophysics (MESA): Giant Planets, Oscillations, Rotation, and Massive Stars
• Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
• Modules for Experiments in Stellar Astrophysics (MESA): Convective Boundaries, Element Diffusion, and Massive Star Explosions
• Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation
• A Multi-Code Analysis Toolkit for Astrophysical Simulation Data
• Core-Collapse Supernovae from 9 to 120 Solar Masses Based on Neutrino-powered Explosions
• Black Hole Formation in Failing Core-Collapse Supernovae
• Shell-model calculations of stellar weak interaction rates: II. Weak rates for nuclei in the mass range A=45-65 in supernovae environment
• Turbulent Convection in Stellar Interiors. I. Hydrodynamic Simulation
• Extensible Component Based Architecture for FLASH, A Massively Parallel, Multiphysics Simulation Code
• A large scale dynamo and magnetoturbulence in rapidly rotating core-collapse supernovae
• The Overarching Framework of Core-Collapse Supernova Explosions as Revealed by 3D Fornax Simulations
• Efficient Spherical Harmonic Transforms aimed at pseudo-spectral numerical simulations
• Supernova Simulations from a 3D Progenitor Model -- Impact of Perturbations and Evolution of Explosion Properties
• The Landscape of the Neutrino Mechanism of Core-Collapse Supernovae: Neutron Star and Black Hole Mass Functions, Explosion Energies and Nickel Yields
• Exploring Fundamentally Three-dimensional Phenomena in High-fidelity Simulations of Core-collapse Supernovae
• Non-Radial Instabilities and Progenitor Asphericities in Core-Collapse Supernovae
• The Role of Turbulence in Neutrino-Driven Core-Collapse Supernova Explosions
• Revival of The Stalled Core-Collapse Supernova Shock Triggered by Precollapse Asphericity in the Progenitor Star
• Neutrino-driven convection versus advection in core collapse supernovae
• Improvements to stellar structure models, based on a grid of 3D convection simulations. II. Calibrating the mixing-length formulation
• The Three Dimensional Evolution to Core Collapse of a Massive Star
• On Variations Of Pre-Supernova Model Properties
• The Last Minutes of Oxygen Shell Burning in a Massive Star
• Mapping Initial Hydrostatic Models in Godunov Codes
• Beyond Mixing-length Theory: a step toward 321D
• One-, Two-, and Three-dimensional Simulations of Oxygen Shell Burning Just Before the Core-Collapse of Massive Stars
• Idealised hydrodynamic simulations of turbulent oxygen-burning shell convection in 4π geometry
• Large-Scale Mixing in a Violent Oxygen-Neon Shell Merger Prior to a Core-Collapse Supernova
• An Improved Multipole Approximation for Self-Gravity and Its Importance for Core-Collapse Supernova Simulations
• Hydrodynamic simulations of He-shell flash convection
• Convective-reactive nucleosynthesis of K, Sc, Cl and p-process isotopes in O-C shell mergers
• Constraining properties of the next nearby core-collapse supernova with multi-messenger signals
• 3D hydrodynamic simulations of C ingestion into a convective O shell
• A 3D Simulation of a Neutrino-Driven Supernova Explosion Aided By Convection and Magnetic Fields
• The Impact of Nuclear Reaction Rate Uncertainties On The Evolution of Core-Collapse Supernova Progenitors
• On The Development of Multidimensional Progenitor Models For Core-collapse Supernovae
• Determining the Structure of Rotating Massive Stellar Cores with Gravitational Waves
• 3D Simulations of Oxygen Shell Burning with and without Magnetic Fields
• Understanding the Engines and Progenitors of Gamma-Ray Bursts
• Three-dimensional Hydrodynamics Simulations of Precollapse Shell Burning in the Si- and O-rich Layers

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