Core collapse with magnetic fields and rotation

Abstract

We study the effects of magnetic fields and rotation on the core collapse of a star of an initial mass of M = 20 solar masses using axisymmetric simulations coupling special relativistic magnetohydrodynamics, an approximately relativistic gravitational potential, and spectral neutrino transport. We compare models of the same core with different, artificially added profiles of rotation and magnetic field. A model with weak field and slow rotation does not produce an explosion, while stronger fields and fast rotation open the possibility of explosions. Whereas the neutrino luminosities of the exploding models are the same as or even less than those of the non-exploding model, magnetic fields locally in equipartition with the gas pressure provide a strong contribution to the shock revival and the acceleration of bipolar outflows. Among the amplification processes generating such strong fields, we find the magneto-rotational instability. However, our limited grid resolution allows us to find it only in limited regions of the model with the strongest pre-collapse field ($10^{11}$ G) and fastest rotation.

18 pages, 9 figures. J. Phys. G: Nucl. Part. Phys. in press

References in corpus (19)

• Pre-Supernova Evolution of Massive Single and Binary Stars
• Nucleosynthesis and Remnants in Massive Stars of Solar Metallicity
• Magnetorotationally driven Supernovae as the origin of early galaxy $r$-process elements?
• Three-dimensional core-collapse supernova simulated using a 15 $M_{\odot }$ progenitor
• Magnetorotational Core-Collapse Supernovae in Three Dimensions
• Muon Creation in Supernova Matter Facilitates Neutrino-driven Explosions
• Semi-global simulations of the magneto-rotational instability in core collapse supernovae
• Rotation-supported Neutrino-driven Supernova Explosions in Three Dimensions and the Critical Luminosity Condition
• Axisymmetric simulations of magnetorotational core collapse: Approximate inclusion of general relativistic effects
• Magnetic field amplification and magnetically supported explosions of collapsing, non-rotating stellar cores
• Magnetically-driven explosions of rapidly-rotating white dwarfs following Accretion-Induced Collapse
• Gravitational waves from 3D MHD core collapse simulations
• A new general relativistic magnetohydrodynamics code for dynamical spacetimes
• Impact of Neutrino Opacities on Core-Collapse Supernova Simulations
• General relativistic simulations of pasive-magneto-rotational core collapse with microphysics
• Magnetohydrodynamic Turbulence Powered by Magnetorotational Instability in Nascent Proto-Neutron Stars
• Numerical Simulations of Equatorially-Asymmetric Magnetized Supernovae: Formation of Magnetars and Their Kicks
• Evolution of the surface magnetic field of rotating proto-neutron stars
• Conservative Moment Equations for Neutrino Radiation Transport with Limited Relativity

Cited by in corpus (39)

• Origin of the Heaviest Elements: the Rapid Neutron-Capture Process
• Magnetorotational core collapse of possible GRB progenitors. I. Explosion mechanisms
• Towards asteroseismology of core-collapse supernovae with gravitational-wave observations - II. Spacetime perturbations
• Magnetorotational core collapse of possible GRB progenitors. II. Formation of protomagnetars and collapsars
• 3D MHD modeling of the expanding remnant of SN 1987A. Role of magnetic field and non-thermal radio emission
• The impact of non-dipolar magnetic fields in core-collapse supernovae
• A global model of the magnetorotational instability in protoneutron stars
• Young magnetars with fracturing crusts as fast radio burst repeaters
• Pre-collapse Properties of Superluminous Supernovae and Long Gamma-Ray Burst Progenitor Models
• MRI-driven $\alpha -\Omega$ dynamos in protoneutron stars
• Features of Accretion-phase Gravitational-wave Emission from Two-dimensional Rotating Core-collapse Supernovae
• The chemical signature of jet-driven hypernovae
• Magnetic support for neutrino-driven explosion of 3D non-rotating core-collapse supernova models
• Heavy sterile neutrinos in stellar core-collapse
• Cosmological Insights into the Early Accretion of \textit{r}-Process-Enhanced stars. I. A Comprehensive Chemo-dynamical Analysis of LAMOST J1109+0754
• Using failed supernovae to constrain the Galactic r-process element production
• Neutron star collapse and gravitational waves with a non-convex equation of state
• Effects of the standing accretion-shock instability and the lepton-emission self-sustained asymmetry in the neutrino emission of rotating supernovae
• Determining the Structure of Rotating Massive Stellar Cores with Gravitational Waves
• Identifying rotation in SASI-dominated core-collapse supernovae with a neutrino gyroscope
• Two-dimensional numerical study for magnetic field dependence of neutrino-driven core-collapse supernova models
• The magneto-rotational instability in massive stars
• A Comparison of 2D Magnetohydrodynamic Supernova Simulations with the CoCoNuT-FMT and Aenus-Alcar Codes
• Effects of rotation and magnetic field on the revival of a stalled shock in supernova explosions
• Core-collapse supernova simulations with reduced nucleosynthesis networks
• Relativistic outflows from a GRMHD mean-field disk dynamo
• On the existence of a luminosity threshold of GRB jets in massive stars
• Standing Accretion Shock Instability in the Collapse of a Rotating Stellar Core
• CAFE-R a code that solves the special relativistic radiation hydrodynamics equations
• Searching for Magnetar Binaries Disrupted by Core-Collapse Supernovae
• Enrichment of the Galactic disc with neutron-capture elements: Gd, Dy, and Th
• Discovery of an Extremely r-process-enhanced Thin-disk Star with [Eu/H] = +0.78
• On the application of Jacobian-free Riemann solvers for relativistic radiation magnetohydrodynamics under M1 closure
• Interaction between gravitational radiation and electromagnetic radiation
• Influence of magnetic field on beta-processes in supernova matter
• Polarized radio emission unveils the structure of the pre-supernova circumstellar magnetic field and the radio emission in SN1987A
• Resonant amplification of multimessenger emission in rotating stellar core collapse
• MRI-driven $\alpha \Omega$ dynamo at high Pm numbers
• Trends in gravitational wave emission in axisymmetric simulations of rotating core-collapse supernovae