Post-shock-revival evolutions in the neutrino-heating mechanism of core-collapse supernovae

Abstract

We perform some experimental simulations in spherical symmetry and axisymmetry to understand the post-shock-revival evolution of core-collapse supernovae. Assuming that the stalled shock wave is relaunched by neutrino heating and employing the so-called light bulb approximation, we induce shock revival by raising the neutrino luminosity by hand up to the critical value, which is also de- termined by dynamical simulations. A 15M_{sun} progenitor model is employed. We incorporate nuclear network calculations with a consistent equation of state in the simulations to account for the energy release by nuclear reactions and their feedback to hydrodynamics. Varying the shock-relaunch time rather arbitrarily, we investigate the ensuing long-term evolutions systematically, paying particular attention to the explosion energy and nucleosynthetic yields as a function of this relaunch time, or equivalently the accretion rate at shock revival. We study in detail how the diagnostic explosion energy approaches the asymptotic value and which physical processes contribute to the explosion energy in what proportions as well as their dependence on the relaunch time and the dimension of dynamics. We find that the contribution of nuclear reactions to the explosion energy is comparable to or greater than that of neutrino heating. In particular, recombinations are dominant over burnings in the contributions of nuclear reactions. Interestingly 1D models studied in this paper cannot produce the appropriate explosion energy and nickel mass simultaneously, overproducing nickels, whereas this problem is resolved in 2D models if the shock is relaunched at 300-400ms after bounce.

arXiv commentAccepted for publication in ApJ. A major bug fixed in the 2D simulations. The main conclusion unchanged qualitatively

References in corpus (38)

• Progenitors of core-collapse supernovae
• Explosion Mechanisms of Core-Collapse Supernovae
• Astrophysical Reaction Rates From Statistical Model Calculations
• The death of massive stars - I. Observational constraints on the progenitors of type II-P supernovae
• Observed Fractions of Core-Collapse Supernova Types and Initial Masses of their Single and Binary Progenitor Stars
• Progenitor-Explosion Connection and Remnant Birth Masses for Neutrino-Driven Supernovae of Iron-Core Progenitors
• Observed and Physical Properties of Core-Collapse Supernovae
• Delayed neutrino-driven supernova explosions aided by the standing accretion-shock instability
• Multidimensional Supernova Simulations with Approximative Neutrino Transport I. Neutron Star Kicks and the Anisotropy of Neutrino-Driven Explosions in Two Spatial Dimensions
• Type II Supernovae: Model Light Curves and Standard Candle Relationships
• Shock Breakout in Core-Collapse Supernovae and its Neutrino Signature
• Conditions for Shock Revival by Neutrino Heating in Core-Collapse Supernovae
• Postbounce evolution of core-collapse supernovae: Long-term effects of equation of state
• A New Multi-Dimensional General Relativistic Neutrino Hydrodynamics Code for Core-Collapse Supernovae II. Relativistic Explosion Models of Core-Collapse Supernovae
• Dimension as a Key to the Neutrino Mechanism of Core-Collapse Supernova Explosions
• Nucleosynthesis-relevant conditions in neutrino-driven supernova outflows. I. Spherically symmetric hydrodynamic simulations
• Is Strong SASI Activity the Key to Successful Neutrino-Driven Supernova Explosions?
• Three-dimensional Hydrodynamic Core-Collapse Supernova Simulations for an $11.2M_{\odot }$ Star with Spectral Neutrino Transport
• Criteria for Core-Collapse Supernova Explosions by the Neutrino Mechanism
• Axisymmetric Ab Initio Core-Collapse Supernova Simulations of 12-25 M_sol Stars
• Ledoux-Convection in Protoneutron Stars --- a Clue to Supernova Nucleosynthesis?
• Numerical Analysis on Standing Accretion Shock Instability with Neutrino Heating in the Supernova Cores
• Non-Spherical Core-Collapse Supernovae II. Late-Time Evolution of Globally Anisotropic Neutrino-Driven Explosions and Implications for SN 1987A
• Three-Dimensional Simulations of Standing Accretion Shock Instability in Core-Collapse Supernovae
• Pushing 1D CCSNe to explosions: model and SN 1987A
• Silicon Burning II: Quasi-Equilibrium and Explosive Burning
• On the Importance of the Equation of State for the Neutrino-Driven Supernova Explosion Mechanism
• The Physics of the Neutrino Mechanism of Core-Collapse Supernovae
• Effects of rotation on the revival of a stalled shock in supernova explosions
• Entropic-acoustic instability of shocked Bondi accretion I. What does perturbed Bondi accretion sound like ?
• Dynamics of a Spherical Accretion Shock with Neutrino Heating and Alpha-Particle Recombination
• Hydrodynamics of Core-Collapse Supernovae at the Transition to Explosion. I. Spherical Symmetry
• Uncertainties in Supernova Yields I: 1D Explosions
• Stability of the Accretion Flows with Stalled Shocks in Core-Collapse Supernovae
• Nucleosynthesis inside Gamma-Ray Burst Accretion Disks
• Revisiting Impacts of Nuclear Burning for Reviving Weak Shocks in Neutrino-Driven Supernovae
• Explosive nucleosynthesis in the neutrino-driven aspherical supernova explosion of a non-rotating 15$M_{\odot }$ star with solar metallicity
• Numerical Models of Protoneutron Stars and Type-II Supernovae --- Recent Developments

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