Neutron Star Kicks from Asymmetric Collapse

Abstract

Many neutron stars are observed to be moving with spatial velocities, in excess of 500km/s. A number of mechanisms have been proposed to give neutron stars these high velocities. One of the leading classes of models proposed invokes asymmetries in the core of a massive star just prior to collapse. These asymmetries grow during the collapse, causing the resultant supernova to also be asymmetric. As the ejecta is launched, it pushes off (or ``kicks'') the newly formed neutron star. This paper presents the first 3-dimensional supernova simulations of this process. The ejecta is not the only matter that kicks the newly-formed neutron star. Neutrinos also carry away momentum and the asymmetric collapse leads also to asymmetries in the neutrinos. However, the neutrino asymmetries tend to damp out the neutron star motions and even the most extreme asymmetric collapses presented here do not produce final neutron star velocities above 200km/s.

7 pages, 4 figures, see http://qso.lanl.gov/~clf/papers/kick.ps.gz for full figures

References in corpus (6)

• The Velocity Distribution of Isolated Radio Pulsars
• The Magnetorotational Instability in Core Collapse Supernova Explosions
• Pulsar Recoil by Large-Scale Anisotropies in Supernova Explosions
• Modeling Core-Collapse Supernovae in 3-Dimensions
• Proper-Motion Measurements with the VLA. II. Observations of Twenty-eight Pulsars
• The runaway black hole GRO J1655-40

Cited by in corpus (73)

• Anomalous Axion Interactions and Topological Currents in Dense Matter
• Sterile neutrinos: the dark side of the light fermions
• Multidimensional Supernova Simulations with Approximative Neutrino Transport I. Neutron Star Kicks and the Anisotropy of Neutrino-Driven Explosions in Two Spatial Dimensions
• The Expansion Asymmetry and Age of the Cassiopeia A Supernova Remnant
• Explosion Mechanism, Neutrino Burst, and Gravitational Wave in Core-Collapse Supernovae
• Formation and evolution of compact binaries in globular clusters: II. Binaries with neutron stars
• The DRAGON simulations: globular cluster evolution with a million stars
• Compact Binary Merger Rates: Comparison with LIGO/Virgo Upper Limits
• Three-dimensional Hydrodynamic Core-Collapse Supernova Simulations for an $11.2M_{\odot }$ Star with Spectral Neutrino Transport
• Revival of The Stalled Core-Collapse Supernova Shock Triggered by Precollapse Asphericity in the Progenitor Star
• The Spin Periods and Rotational Profiles of Neutron Stars at Birth
• Multiple physical elements to determine the gravitational-wave signatures of core-collapse supernovae
• Getting Its Kicks: A VLBA Parallax for the Hyperfast Pulsar B1508+55
• Features of the Acoustic Mechanism of Core-Collapse Supernova Explosions
• Numerical Analysis on Standing Accretion Shock Instability with Neutrino Heating in the Supernova Cores
• Natal Kicks of Stellar-Mass Black Holes by Asymmetric Mass Ejection in Fallback Supernovae
• Microarcsecond VLBI pulsar astrometry with PSR$\pi$ II. parallax distances for 57 pulsars
• BSE versus StarTrack: implementations of new wind, remnant-formation, and natal-kick schemes in NBODY7 and their astrophysical consequences
• Effects of neutrino-driven kicks on the supernova explosion mechanism
• Gravitational Waves from Gravitational Collapse
• Parametrized 3D models of neutrino-driven supernova explosions: Neutrino emission asymmetries and gravitational-wave signals
• Hydrodynamical Neutron Star Kicks in Three Dimensions
• Gravitational Wave Signatures of Magnetohydrodynamically-Driven Core-Collapse Supernova Explosions
• Neutron Star Kicks in Isolated and Binary Pulsars: Observational Constraints and Implications for Kick Mechanisms
• Direct Confirmation of the Asymmetry of the Cas A Supernova with Light Echoes
• Fully General Relativistic Simulations of Core-Collapse Supernovae with An Approximate Neutrino Transport
• Gravitational Wave Signatures from Low-mode Spiral Instabilities in Rapidly Rotating Supernova Cores
• Stellar-mass black holes in young massive and open stellar clusters IV: updated stellar-evolutionary and black hole spin models and comparisons with the LIGO-Virgo O1/O2 merger-event data
• SNSPH: A Parallel 3-D Smoothed Particle Radiation Hydrodynamics Code
• Gravitational Radiation from Standing Accretion Shock Instability in Core-Collapse Supernovae
• Stochastic Nature of Gravitational Waves from Supernova Explosions with Standing Accretion Shock Instability
• Remnants and ejecta of thermonuclear electron-capture supernovae: Constraining oxygen-neon deflagrations in high-density white dwarfs
• The Afterglow and Early-Type Host Galaxy of the Short GRB 150101B at z=0.1343
• Theoretical Support for the Hydrodynamic Mechanism of Pulsar Kicks
• Topological Currents in Neutron Stars: Kicks, Precession, Toroidal Fields, and Magnetic Helicity
• Late-Time Convection in the Collapse of a 23 Solar Mass Star
• Preparing the next gravitational million-body simulations: Evolution of single and binary stars in Nbody6++GPU, MOCCA and McLuster
• The Neutrino Bubble Instability: A Mechanism for Generating Pulsar Kicks
• Multimessengers from core-collapse supernovae: multidimensionality as a key to bridge theory and observation
• rpSPH: a novel Smoothed Particle Hydrodynamics Algorithm
• Pulsar kicks from neutrino oscillations
• The young pulsar PSR B0540-69.3 and its synchrotron nebula in the optical and X-rays
• Gamma-Rays from Single Lobe Supernova Explosions
• The Effect of Supernova Convection On Neutron Star and Black Hole Masses
• Gravitational Waves from Stellar Collapse: Correlations to Explosion Asymmetries
• Interpreting Short Gamma Ray Burst Progenitor Kicks and Time Delays Using the Host Galaxy-Dark Matter Halo Connection
• Impacts of Rotation on Three-dimensional Hydrodynamics of Core-collapse Supernovae
• Wind mass-loss rates of stripped stars inferred from Cygnus X-1
• Coherent Network Analysis of Gravitational Waves from Three-Dimensional Core-Collapse Supernova Models
• Properties of Convective Oxygen and Silicon Burning Shells in Supernova Progenitors
• The influence of inelastic neutrino reactions with light nuclei on the standing accretion shock instability in core-collapse supernovae
• Ray-Tracing Analysis of Anisotropic Neutrino Radiation for Estimating Gravitational Waves in Core-Collapse Supernovae
• Effects of Rotation on Stochasticity of Gravitational Waves in Nonlinear Phase of Core-Collapse Supernovae
• Inelastic Neutrino-Helium Scatterings and Standing Accretion Shock Instability in Core-Collapse Supernovae
• Chemical Abundances in the Secondary Star of the Neutron Star Binary Centaurus X-4
• Demographics of neutron stars in young massive and open clusters
• Self-Enrichment in Globular Clusters: Is There a Role for the Super-Asymptotic Giant Branch Stars?
• A Novel Mechanism for Type-I Superconductivity in Neutron Stars
• North-South Neutrino Heating Asymmetry in Strongly Magnetized and Rotating Stellar Cores
• Revisiting Impacts of Nuclear Burning for Reviving Weak Shocks in Neutrino-Driven Supernovae
• The Gravitational Wave Signature of Core-Collapse Supernovae
• LISA sources from young massive and open stellar clusters
• Binary black hole mergers from young massive and open clusters: comparison to GWTC-2 gravitational wave data
• Large Pulsar Kicks from Topological Currents
• Black hole hyperaccretion in collapsars. II. Gravitational waves
• Pulsar Kicks from Majoron Emission
• Compact Object Formation and the Supernova Explosion Engine
• A Potential Supernova Remnant/X-ray Binary Association in M31
• Pulsar kicks and dark matter from a sterile neutrino
• Effect of dynamical interactions on integrated properties of globular clusters
• The gravitational wave signal of the short rise fling of galactic run away pulsars
• Possible astrophysical clues of dark matter
• Magnetorotational Instabilities and Pulsar Kick Velocities