Magnetic field amplification and magnetically supported explosions of collapsing, non-rotating stellar cores

Abstract

We study the amplification of magnetic fields in the collapse and the post-bounce evolution of the core of a non-rotating star of 15 solar masses in axisymmetry. To this end, we solve the coupled equations of magnetohydrodynamics and neutrino transport in the two-moment approximation. The pre-collapse magnetic field is strongly amplified by compression in the infall. Initial fields of the order of 1010 G translate into proto-neutron star fields similar to the ones observed in pulsars, while stronger initial fields yield magnetar-like final field strengths. After core bounce, the field is advected through the hydrodynamically unstable neutrino-heating layer, where non-radial flows due to convection and the standing accretion shock instability amplify the field further. Consequently, the resulting amplification factor of order five is the result of the number of small-eddy turnovers taking place within the time scale of advection through the post-shock layer. Due to this limit, most of our models do not reach equipartition between kinetic and magnetic energy and, consequently, evolve similarly to the non-magnetic case, exploding after about 800 ms when a single or few high-entropy bubbles persist over several dynamical time scales. In the model with the strongest initial field we studied, $10^{12}$ G, for which equipartition between flow and field is achieved, the magnetic tension favours a much earlier development of such long-lived high-entropy bubbles and enforces a fairly ordered large-scale flow pattern. Consequently, this model, after exhibiting very regular shock oscillations, explodes much earlier than non-magnetic ones.

arXiv comment35 pages, 30 figures (reduced quality). Accepted for publication in MNRAS (19 Sept 2014). See http://www.uv.es/camap/camap_content_1.html for a version of the article with high-quality figures and movies of the simulations

References in corpus (67)

• Explosion Mechanisms of Core-Collapse Supernovae
• Presupernova Evolution of Differentially Rotating Massive Stars Including Magnetic Fields
• Stability of Standing Accretion Shocks, With an Eye Toward Core Collapse Supernovae
• Magnetorotationally driven Supernovae as the origin of early galaxy $r$-process elements?
• Simulations of Magnetically-Driven Supernova and Hypernova Explosions in the Context of Rapid Rotation
• Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models
• The Magnetorotational Instability in Core Collapse Supernova Explosions
• Two-dimensional hydrodynamic core-collapse supernova simulations with spectral neutrino transport. I. Numerical method and results for a 15 M_sun star
• Delayed neutrino-driven supernova explosions aided by the standing accretion-shock instability
• Radiation hydrodynamics with neutrinos: Variable Eddington factor method for core-collapse supernova simulations
• Stable magnetic fields in stellar interiors
• Supernova Simulations with Boltzmann Neutrino Transport: A Comparison of Methods
• Magnetorotational Core-Collapse Supernovae in Three Dimensions
• Exploring the relativistic regime with Newtonian hydrodynamics: An improved effective gravitational potential for supernova simulations
• Instability of a stalled accretion shock: evidence for the advective-acoustic cycle
• Dimension as a Key to the Neutrino Mechanism of Core-Collapse Supernova Explosions
• Truncated Moment Formalism for Radiation Hydrodynamics in Numerical Relativity
• SASI Activity in Three-Dimensional Neutrino-Hydrodynamics Simulations of Supernova Cores
• Is Strong SASI Activity the Key to Successful Neutrino-Driven Supernova Explosions?
• Viscosity and Rotation in Core-Collapse Supernovae
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• Multidimensional supernova simulations with approximative neutrino transport. II. Convection and the advective-acoustic cycle in the supernova core
• A new multi-dimensional general relativistic neutrino hydrodynamics code for core-collapse supernovae. I. Method and code tests in spherical symmetry
• New Two-Dimensional Models of Supernova Explosions by the Neutrino-Heating Mechanism: Evidence for Different Instability Regimes in Collapsing Stellar Cores
• Semi-global simulations of the magneto-rotational instability in core collapse supernovae
• Axisymmetric simulations of magneto--rotational core collapse: dynamics and gravitational wave signal
• The Progenitor Dependence of the Preexplosion Neutrino Emission in Core-Collapse Supernovae
• Multi-Dimensional Radiation/Hydrodynamic Simulations of Protoneutron Star Convection
• Dynamics and neutrino signal of black hole formation in non-rotating failed supernovae. I. EOS dependence
• Relativistic models of magnetars: the twisted-torus magnetic field configuration
• Massive star models with magnetic braking
• An Investigation into the Character of Pre-Explosion Core-Collapse Supernova Shock Motion
• Fully General Relativistic Simulations of Core-Collapse Supernovae with An Approximate Neutrino Transport
• Dimensional Dependence of the Hydrodynamics of Core-Collapse Supernovae
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• Magnetically-driven explosions of rapidly-rotating white dwarfs following Accretion-Induced Collapse
• Turbulent Magnetic Field Amplification from Spiral SASI Modes: Implications for Core-Collapse Supernovae and Proto-Neutron Star Magnetization
• 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
• Gravitational waves from 3D MHD core collapse simulations
• Entropic-acoustic instability of shocked Bondi accretion I. What does perturbed Bondi accretion sound like ?
• A new general relativistic magnetohydrodynamics code for dynamical spacetimes
• The Dependence of the Neutrino Mechanism of Core-Collapse Supernovae on the Equation of State
• Magnetorotational Collapse of Population III Stars
• Characterizing SASI- and Convection-Dominated Core-Collapse Supernova Explosions in Two Dimensions
• General relativistic simulations of pasive-magneto-rotational core collapse with microphysics
• Dynamics and neutrino signal of black hole formation in non-rotating failed supernovae. II. progenitor dependence
• Strong mean field dynamos require supercritical helicity fluxes
• Generation of Magnetic Fields by the Stationary Accretion Shock Instability
• Hydrodynamics of Core-Collapse Supernovae at the Transition to Explosion. I. Spherical Symmetry
• On the linear growth mechanism driving the stationary accretion shock instability
• Transport of Magnetic Fields in Convective, Accreting Supernova Cores
• Global Simulations of Magnetorotational Instability in The Collapsed Core of A Massive Star
• Local Simulations of the Magneto-rotational Instability in Core-Collapse Supernovae
• Hyperbolic character of the angular moment equations of radiative transfer and numerical methods
• Magnetars versus Radio Pulsars: MHD Stability in Newborn Highly Magnetized Neutron Stars
• Radiation Magnetohydrodynamics for Black Hole-Torus System in Full General Relativity: A Step toward Physical Simulation
• Alfven Wave-Driven Supernova Explosion
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• A radiation-hydrodynamics scheme valid from the transport to the diffusion limit
• Toward a magnetohydrodynamic theory of the stationary accretion shock: toy model of the advective-acoustic cycle in a magnetized flow
• Magnetic field generation by the stationary accretion shock instability

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