On the Requirements for Realistic Modeling of Neutrino Transport in Simulations of Core-Collapse Supernovae

Abstract

We have conducted a series of numerical experiments with the spherically symmetric, general relativistic, neutrino radiation hydrodynamics code Agile-BOLTZTRAN to examine the effects of several approximations used in multidimensional core-collapse supernova simulations. Our code permits us to examine the effects of these approximations quantitatively by removing, or substituting for, the pieces of supernova physics of interest. These approximations include: (1) using Newtonian versus general relativistic gravity, hydrodynamics, and transport; (2) using a reduced set of weak interactions, including the omission of non-isoenergetic neutrino scattering, versus the current state-of-the-art; and (3) omitting the velocity-dependent terms, or observer corrections, from the neutrino Boltzmann kinetic equation. We demonstrate that each of these changes has noticeable effects on the outcomes of our simulations. Of these, we find that the omission of observer corrections is particularly detrimental to the potential for neutrino-driven explosions and exhibits a failure to conserve lepton number. Finally, we discuss the impact of these results on our understanding of current, and the requirements for future, multidimensional models.

12 pages, 9 figures, Accepted for publication in ApJ

References in corpus (4)

• Nucleosynthesis and Remnants in Massive Stars of Solar Metallicity
• Delayed neutrino-driven supernova explosions aided by the standing accretion-shock instability
• The isotropic diffusion source approximation for supernova neutrino transport
• Features of the Acoustic Mechanism of Core-Collapse Supernova Explosions

Cited by in corpus (63)

• Explosion Mechanisms of Core-Collapse Supernovae
• Magnetorotationally driven Supernovae as the origin of early galaxy $r$-process elements?
• Physics of Core-Collapse Supernovae in Three Dimensions: a Sneak Preview
• A New Multi-Dimensional General Relativistic Neutrino Hydrodynamics Code of Core-Collapse Supernovae III. Gravitational Wave Signals from Supernova Explosion Models
• The Overarching Framework of Core-Collapse Supernova Explosions as Revealed by 3D Fornax Simulations
• A New Multi-Dimensional General Relativistic Neutrino Hydrodynamics Code for Core-Collapse Supernovae II. Relativistic Explosion Models of Core-Collapse Supernovae
• The Status of Multi-Dimensional Core-Collapse Supernova Models
• Hydrodynamics of core-collapse supernovae and their progenitors
• Multiple physical elements to determine the gravitational-wave signatures of core-collapse supernovae
• General-Relativistic Simulations of Three-Dimensional Core-Collapse Supernovae
• The Development of Explosions in Axisymmetric Ab Initio Core-Collapse Supernova Simulations of 12-25 $M_{\odot }$ Stars
• New Two-Dimensional Models of Supernova Explosions by the Neutrino-Heating Mechanism: Evidence for Different Instability Regimes in Collapsing Stellar Cores
• The Progenitor Dependence of the Preexplosion Neutrino Emission in Core-Collapse Supernovae
• General Relativistic Three-Dimensional Multi-Group Neutrino Radiation-Hydrodynamics Simulations of Core-Collapse Supernovae
• The Dynamics of Neutrino-Driven Supernova Explosions after Shock Revival in 2D and 3D
• Metallicity-constrained merger rates of binary black holes and the stochastic gravitational wave background
• A New Multi-Energy Neutrino Radiation-Hydrodynamics Code in Full General Relativity and Its Application to Gravitational Collapse of Massive Stars
• Fully General Relativistic Simulations of Core-Collapse Supernovae with An Approximate Neutrino Transport
• Interplay of Neutrino Opacities in Core-collapse Supernova Simulations
• Two Dimensional Core-Collapse Supernova Explosions Aided by General Relativity with Multidimensional Neutrino Transport
• Neutrino spectra evolution during proto-neutron star deleptonization
• Simulations of core-collapse supernovae in spatial axisymmetry with full Boltzmann neutrino transport
• Probing the neutrino mass hierarchy with the rise time of a supernova burst
• Measuring the Angular Momentum Distribution in Core-Collapse Supernova Progenitors with Gravitational Waves
• Core-collapse supernova simulations in one and two dimensions: comparison of codes and approximations
• A New Multi-Dimensional General Relativistic Neutrino Hydrodynamics Code for Core-Collapse Supernovae IV. The Neutrino Signal
• Conservative 3+1 General Relativistic Variable Eddington Tensor Radiation Transport Equations
• Numerical Simulations of Optically Thick Accretion onto a Black Hole - I. Spherical Case
• Numerical Simulations of Optically Thick Accretion onto a Black Hole - II. Rotating Flow
• The Dependence of the Neutrino Mechanism of Core-Collapse Supernovae on the Equation of State
• CASTRO: A New Compressible Astrophysical Solver. III. Multigroup Radiation Hydrodynamics
• Neutrino Emission as Diagnostics of Core-Collapse Supernovae
• A Detailed Comparison of Multi-Dimensional Boltzmann Neutrino Transport Methods in Core-Collapse Supernovae
• Multimessengers from core-collapse supernovae: multidimensionality as a key to bridge theory and observation
• An advanced leakage scheme for neutrino treatment in astrophysical simulations
• Three-dimensional Boltzmann-Hydro code for core-collapse in massive stars II. The Implementation of moving-mesh for neutron star kicks
• Two-Dimensional Core-Collapse Supernova Simulations with the Isotropic Diffusion Source Approximation for Neutrino Transport
• Three Dimensional Core-Collapse Supernova Simulations with 160 Isotopic Species Evolved to Shock Breakout
• Monte Carlo Neutrino Transport Through Remnant Disks from Neutron Star Mergers
• Muonization of supernova matter
• General relativistic radiation hydrodynamics of accretion flows: II. Treating stiff source terms and exploring physical limitations
• Comparing treatments of weak reactions with nuclei in simulations of core-collapse supernovae
• Multi-dimensional Features of Neutrino Transfer in Core-Collapse Supernovae
• Conservative 3+1 General Relativistic Boltzmann Equation
• Core-collapse supernovae in the hall of mirrors. A three-dimensional code-comparison project
• Combining collective, MSW, and turbulence effects in supernova neutrino flavor evolution
• Probing Rotation of Core-collapse Supernova with Concurrent Analysis of Gravitational Waves and Neutrinos
• Protoneutron Star Convection Simulated with a New General Relativistic Boltzmann Neutrino Radiation-Hydrodynamics Code
• Multi-Frequency General Relativistic Radiation-Hydrodynamics with ${\mathbf{M}}_1$ Closure
• Revisiting Impacts of Nuclear Burning for Reviving Weak Shocks in Neutrino-Driven Supernovae
• General relativistic neutrino transport using spectral methods
• A DG-IMEX method for two-moment neutrino transport: Nonlinear solvers for neutrino-matter coupling
• Numerical Study of Stellar Core Collapse and Neutrino Emission Using the Nuclear Equation of State Obtained by the Variational Method
• Time delay of timelike particles in gravitational lensing of Schwarzschild spacetime
• Exploring Supernova Gravitational Waves with Machine Learning
• Neutron stars formation and Core Collapse Supernovae
• A multi-dimensional implementation of the Advanced Spectral neutrino Leakage scheme
• Probing self-interacting sterile neutrino dark matter with the diffuse supernova neutrino background
• Probing nuclear physics with supernova gravitational waves and machine learning
• On the Possibility to Determine Neutrino Mass Hierarchy via Supernova Neutrinos with Short-Time Characteristics
• The initial mass-remnant mass relation for core collapse supernovae
• A Parametric Study of the SASI Comparing General Relativistic and Nonrelativistic Treatments
• Stellar population modelling of neutron stars and black holes: spatially-resolved graveyards in MaNGA/SDSS-IV galaxies