Effects of hyperons in binary neutron star mergers

Abstract

Numerical simulations for the merger of binary neutron stars are performed in full general relativity incorporating both nucleonic and hyperonic finite-temperature equations of state (EOS) and neutrino cooling for the first time. It is found that even for the hyperonic EOS, a hypermassive neutron star is first formed after the merger for the typical total mass $\approx$ 2.7M\bigodot, and subsequently collapses to a black hole (BH). It is shown that hyperons play a substantial role in the post-merger dynamics, torus formation around the BH, and emission of gravitational waves (GWs). In particular, the existence of hyperons is imprinted in GWs. Therefore, GW observations will provide a potential opportunity to explore the composition of the neutron star matter.

5 pages, 5 figures, accepted for publication in PRL

References in corpus (15)

• Shapiro delay measurement of a two solar mass neutron star
• Neutron Star Observations: Prognosis for Equation of State Constraints
• Cold Quark Matter
• Merger of binary neutron stars to a black hole: Disk mass, short gamma-ray bursts, and quasinormal mode ringing
• Binary Neutron Star Mergers: Dependence on the Nuclear Equation of State
• Signals of the QCD phase transition in core-collapse supernovae
• Cold uniform matter and neutron stars in the quark-mesons-coupling model
• Longterm general relativistic simulation of binary neutron stars collapsing to a black hole
• Calibration of the LIGO Gravitational Wave Detectors in the Fifth Science Run
• Tables of Hyperonic Matter Equation of State for Core-Collapse Supernovae
• Astrophysical Implications of Equation of State for Hadron-Quark Mixed Phase: Compact Stars and Stellar Collapses
• Mass Ejection by Strange Star Mergers and Observational Implications
• Calibration and sensitivity of the Virgo detector during its second science run
• Double-$\Lambda$ hypernuclei in the relativistic mean-field theory
• Stellar core collapse in full general relativity with microphysics - Formulation and Spherical collapse test -

Cited by in corpus (82)

• Equations of state for supernovae and compact stars
• The Einstein Toolkit: A Community Computational Infrastructure for Relativistic Astrophysics
• Binary neutron-star mergers: a review of Einstein's richest laboratory
• The mass ejection from the merger of binary neutron stars
• Identifying a first-order phase transition in neutron star mergers through gravitational waves
• Signatures of quark-hadron phase transitions in general-relativistic neutron-star mergers
• Remnant massive neutron stars of binary neutron star mergers: Evolution process and gravitational waveform
• The dynamical mass ejection from binary neutron star mergers: Radiation-hydrodynamics study in general relativity
• Dynamical mass ejection from the merger of asymmetric binary neutron stars: Radiation-hydrodynamics study in general relativity
• Binary Neutron Star Mergers
• Equation-of-state dependence of the gravitational-wave signal from the ring-down phase of neutron-star mergers
• The Dynamics of Binary Neutron Star Mergers and of GW170817
• Thermodynamics conditions of matter in neutron star mergers
• Modeling dynamical ejecta from binary neutron star mergers and implications for electromagnetic counterparts
• Implementation of a simplified approach to radiative transfer in general relativity
• Probing Extreme-Density Matter with Gravitational Wave Observations of Binary Neutron Star Merger Remnants
• How Gravitational-wave Observations Can Shape the Gamma-ray Burst Paradigm
• Observationally constraining gravitational wave emission from short gamma-ray burst remnants
• Accretion-induced prompt black hole formation in asymmetric neutron star mergers, dynamical ejecta and kilonova signals
• Neutron Star Merger Remnants
• Mergers of binary neutron stars with realistic spin
• Binary Neutron Stars with Generic Spin, Eccentricity, Mass ratio, and Compactness - Quasi-equilibrium Sequences and First Evolutions
• kiloHertz gravitational waves from binary neutron star remnants: time-domain model and constraints on extreme matter
• The evolution of binary neutron star post-merger remnants: a review
• The Science of the Einstein Telescope
• On the Deconfinement Phase Transition in Neutron-Star Mergers
• Exploring tidal effects of coalescing binary neutron stars in numerical relativity
• Proto-neutron stars with heavy baryons and universal relations
• Gravitational wave spectroscopy of binary neutron star merger remnants with mode stacking
• Neutrino transport in black hole-neutron star binaries: neutrino emission and dynamical mass ejection
• Improved Leakage-Equilibration-Absorption Scheme (ILEAS) for Neutrino Physics in Compact Object Mergers
• Numerical Relativity of Compact Binaries in the 21st Century
• Coalescence of black hole--neutron star binaries
• Nuclear Equation of state for Compact Stars and Supernovae
• Hydrodynamics in full general relativity with conservative AMR
• Hyperons in neutron stars and supernova cores
• Three dimensional evolution of differentially rotating magnetized neutron stars
• Aligned spin neutron star-black hole mergers: a gravitational waveform amplitude model
• Monte Carlo Neutrino Transport Through Remnant Disks from Neutron Star Mergers
• Gravitational waves, neutrino emissions, and effects of hyperons in binary neutron star mergers
• Merger of compact stars in the two-families scenario
• Hyperons in hot dense matter: what do the constraints tell us for equation of state?
• Equations of state for hot neutron stars -- II. The role of exotic particle degrees of freedom
• The Transient Gravitational-Wave Sky
• Impact of the nuclear symmetry energy on the post-merger phase of a binary neutron star coalescence
• Quark formation and phenomenology in binary neutron-star mergers using V-QCD
• Interaction of misaligned magnetospheres in the coalescence of binary neutron stars
• Detectable MeV neutrinos from black hole neutrino-dominated accretion flows
• The $d^{\ast }(2380)$ in neutron stars - a new degree of freedom?
• Hyperon Matter and Black Hole Formation in Failed Supernovae
• The scenario of two families of compact stars 2. Transition from hadronic to quark matter and explosive phenomena
• Quark deconfinement and the duration of short Gamma Ray Bursts
• Muons in the aftermath of neutron star mergers and their impact on trapped neutrinos
• Exploring thermal effects of the hadron-quark matter transition in neutron star mergers
• Full 3D Numerical Relativity Simulations of Neutron Star -- Boson Star Collisions with BAM
• Axions: From Magnetars and Neutron Star Mergers to Beam Dumps and BECs
• Detectability of QCD phase transitions in binary neutron star mergers: Bayesian inference with the next generation gravitational wave detectors
• Thermal behavior as indicator for hyperons in binary neutron star merger remnants
• New perspectives on neutron star and black hole spectroscopy and dynamic tides
• A Gravitational Wave Detector for Post Merger Neutron Stars: Beyond the Quantum Loss Limit of Michelson Fabry Perot Interferometer
• Using machine learning to parametrize postmerger signals from binary neutron stars
• The I-Love-Q Relations for Superfluid Neutron Stars
• Initial-data contribution to the error budget of gravitational waves from neutron-star binaries
• The Influence of Muons, Pions, and Trapped Neutrinos on Neutron Star Mergers
• Prospects for Direct Detection of Black Hole Formation in Neutron Star Mergers with Next-Generation Gravitational-Wave Detectors
• Effects of Onset of Phase Transition on Binary Neutron Star Mergers
• Electromagnetic signal of the QCD phase transition in neutron star mergers
• Revealing Phase Transition in Dense Matter with Gravitational Wave Spectroscopy of Binary Neutron Star Mergers
• Flavor Symmetry and Topology Change in Nuclear Symmetry Energy for Compact Stars
• On the Testability of the Quark-Hadron Transition Using Gravitational Waves From Merging Binary Neutron Stars
• The impact of hyperons on neutron star mergers: gravitational waves, mass ejection and black hole formation
• Investigating the Impact of Higher-Order Phase Transitions in Binary Neutron-Star Mergers
• Dependence of postmerger properties on the thermal heating efficiency in neutron star mergers
• Insights into Binary Neutron Star Merger Simulations: A Multi-Code Comparison
• $f$-mode oscillations in hot Neutron Stars: Effect of hyperons and neutrino trapping
• Projecting the likely importance of weak-interaction-driven bulk viscosity in neutron star mergers
• Hot Holographic 2-flavor Quark Star
• Neutrino mean free path in neutron stars in the presence of hyperons
• Signatures of deconfined quark phases in binary neutron star mergers
• Predictions on observing hot holographic quark star with gravitational waves
• Strangeness in astrophysics: Theoretical developments
• Realistic Equations of State Informing Neutron Star Post-Merger Gravitational-Wave Frequencies