Impacts of Rotation on Three-dimensional Hydrodynamics of Core-collapse Supernovae

Abstract

We perform a series of simplified numerical experiments to explore how rotation impacts on the three-dimensional (3D) hydrodynamics of core-collapse supernovae. For the sake of our systematic study, we employ a light-bulb scheme to trigger explosions and a three-flavor neutrino leakage scheme to treat deleptonization effects and neutrino losses from proto-neutron star interior. Using a 15 solar mass progenitor, we compute thirty models in 3D with a wide variety of initial angular momentum and light-bulb neutrino luminosity. We find that the rotation can help onset of neutrino-driven explosions for the models in which the initial angular momentum is matched to that obtained in recent stellar evolutionary calculations (0.3-3 rad/s at the center). For the models with larger initial angular momentum, the shock surface deforms to be more oblate due to larger centrifugal force. This makes not only a gain region more concentrated around the equatorial plane, but also the mass in the gain region bigger. As a result, buoyant bubbles tend to be coherently formed and rise in the equatorial region, which pushes the revived shock ever larger radii until a global explosion is triggered. We find that these are the main reasons that the preferred direction of explosion in 3D rotating models is often perpendicular to the spin axis, which is in sharp contrast to the polar explosions around the axis that was obtained in previous 2D simulations.

15pages, 13 figures, 1 table, revised and submitted to Astrophysical Journal after referee report

References in corpus (17)

• Delayed neutrino-driven supernova explosions aided by the standing accretion-shock instability
• Magnetorotational Core-Collapse Supernovae in Three Dimensions
• Interferometric Observations of Rapidly Rotating Stars
• Signals of the QCD phase transition in core-collapse supernovae
• Criteria for Core-Collapse Supernova Explosions by the Neutrino Mechanism
• The isotropic diffusion source approximation for supernova neutrino transport
• Multidimensional supernova simulations with approximative neutrino transport. II. Convection and the advective-acoustic cycle in the supernova core
• Equation-of-State Dependent Features in Shock-Oscillation Modulated Neutrino and Gravitational-Wave Signals from Supernovae
• 3D Collapse of Rotating Stellar Iron Cores in General Relativity including Deleptonization and a Nuclear Equation of State
• Semi-global simulations of the magneto-rotational instability in core collapse supernovae
• Generic Gravitational Wave Signals from the Collapse of Rotating Stellar Cores
• Appearance of Light Clusters in Post-bounce Evolution of Core-Collapse Supernovae
• Effects of Rotation on Standing Accretion Shock Instability in Nonlinear Phase for Core-Collapse Supernovae
• Modeling core collapse supernovae in 2 and 3 dimensions with spectral neutrino transport
• Multi-dimensional Features of Neutrino Transfer in Core-Collapse Supernovae
• Stellar Rotation in Field and Cluster B-Stars
• Hydrodynamic simulations of the interaction of supernova shock waves with a clumpy environment: the case of the RX J0852.0-4622 (Vela Jr) supernova remnant

Cited by in corpus (18)

• The Landscape of the Neutrino Mechanism of Core-Collapse Supernovae: Neutron Star and Black Hole Mass Functions, Explosion Energies and Nickel Yields
• The Status of Multi-Dimensional Core-Collapse Supernova Models
• Hydrodynamics of core-collapse supernovae and their progenitors
• The explosion mechanism of core-collapse supernovae: progress in supernova theory and experiments
• The Dynamics of Neutrino-Driven Supernova Explosions after Shock Revival in 2D and 3D
• Rotation-supported Neutrino-driven Supernova Explosions in Three Dimensions and the Critical Luminosity Condition
• Gravitational-wave signal of a core-collapse supernova explosion of a 15 Solar mass star
• General relativistic models for rotating magnetized neutron stars in conformally flat spacetime
• Compact Binary Coalescences: Astrophysical Processes and Lessons Learned
• The morphology of the X-ray afterglows and of the jetted GeV emission in long GRBs
• Post-explosion evolution of core-collapse supernovae
• Effect of stellar rotation on the development of post-shock instabilities during core-collapse supernovae
• Standing Accretion Shock Instability in the Collapse of a Rotating Stellar Core
• Impact of rotation on the evolution of convective vortices in collapsing stars
• Progenitor Dependence of Neutrino-driven Supernova Explosions with the Aid of Heavy Axion-like Particles
• Hyperons and $\Delta$'s in rotating protoneutron stars: Global properties
• Early evolution of newly born proto-neutron stars
• Constraining the Time of Gravitational Wave Emission from Core-Collapse Supernovae