Afterglow of binary neutron star merger

Abstract

The merger of two neutron stars results often in a rapidly and differentially rotating hypermassive neutron star (HMNS). We show by numerical-relativity simulation that the magnetic-field profile around such HMNS is dynamically varied during its subsequent evolution, and as a result, electromagnetic radiation with a large luminosity ~ 0.1 B^2 R^3 Omega is emitted with baryon (B, R, and Omega are poloidal magnetic-field strength at stellar surface, stellar radius, and angular velocity of a HMNS). The predicted luminosity of electromagnetic radiation, which is primarily emitted along the magnetic-dipole direction, is ~ 10^{47} (B/10^{13} G)^2(R/10 km)^3(Omega/10^4 rad/s) ergs/s, that is comparable to the luminosity of quasars.

5 pages, 3 figures; accepted for publication in ApJL

References in corpus (8)

• Shapiro delay measurement of a two solar mass neutron star
• Constraints on a phenomenologically parameterized neutron-star equation of state
• The missing link: Merging neutron stars naturally produce jet-like structures and can power short Gamma-Ray Bursts
• Radio Remnants of Compact Binary Mergers - the Electromagnetic Signal that will follow the Gravitational Waves
• Evolution of magnetized, differentially rotating neutron stars: Simulations in full general relativity
• Formation of Double Compact Objects
• Longterm general relativistic simulation of binary neutron stars collapsing to a black hole
• Evolution of neutron stars with toroidal magnetic fields: Axisymmetric simulation in full general relativity

Cited by in corpus (48)

• Short-Duration Gamma-Ray Bursts
• The Physics of Gamma-Ray Bursts and Relativistic Jets
• Systematics of dynamical mass ejection, nucleosynthesis, and radioactively powered electromagnetic signals from neutron-star mergers
• Binary neutron-star mergers: a review of Einstein's richest laboratory
• Cosmological Fast Radio Bursts from Binary Neutron Star Mergers
• Binary Neutron Star Mergers
• Global simulations of strongly magnetized remnant massive neutron stars formed in binary neutron star mergers
• Rotating Stars in Relativity
• Cosmological Fast Radio Bursts from Binary White Dwarf Mergers
• Multi-messenger picture of compact binary mergers
• On r-process nucleosynthesis from matter ejected in binary neutron starmergers
• Black hole-neutron star mergers at realistic mass ratios: Equation of state and spin orientation effects
• Numerical relativity simulations of neutron star merger remnants using conservative mesh refinement
• How Gravitational-wave Observations Can Shape the Gamma-ray Burst Paradigm
• Magnetically driven winds from differentially rotating neutron stars and X-ray afterglows of short gamma-ray bursts
• Radioactive decay products in neutron star merger ejecta: heating efficiency and $\gamma$-ray emission
• Ultrarelativistic electromagnetic counterpart to binary neutron star mergers
• Post-merger Mass Ejection of Low-mass Binary Neutron Stars
• Radio Counterparts of Compact Binary Mergers detectable in Gravitational Waves: A Simulation for an Optimized Survey
• Core-collapse supernova simulations in one and two dimensions: comparison of codes and approximations
• Collimated outflows from long-lived binary neutron star merger remnants
• The r-process in the neutrino-driven wind from a black-hole torus
• The key role of magnetic fields in binary neutron star mergers
• Double Neutron Star Mergers and Short Gamma-Ray Bursts: Long-Lasting High-Energy Signatures and Remnant Dichotomy
• Three dimensional evolution of differentially rotating magnetized neutron stars
• Long-Lasting Black-Hole Jets in Short Gamma-Ray Bursts
• High-Energy Radiation from Remnants of Neutron Star Binary Mergers
• Flares, jets and quasi-periodic outbursts from neutron star merger remnants
• Accretion and outflow from a magnetized, neutrino cooled torus around the gamma ray burst central engine
• A new code for equilibriums and quasiequilibrium initial data of compact objects
• Energy Sources and Light Curves of Macronovae
• Dynamical bar-mode instability in rotating and magnetized relativistic stars
• On the use of tracer particles in simulations of binary neutron stars
• Equilibrium solutions of relativistic rotating stars with mixed poloidal and toroidal magnetic fields
• On the validity of the adiabatic approximation in compact binary inspirals
• Electromagnetic precursor flares from the late inspiral of neutron star binaries
• Dust formation in macronovae
• Microphysics in the gamma ray burst central engine
• Impact of a mean field dynamo on neutron star mergers leading to magnetar remnants
• Properties of neutrino transfer in a deformed remnant of neutron star merger
• Gamma Ray Bursts and their links with Supernovae and Cosmology
• Monster Shocks, Gamma-Ray Bursts, and Black Hole Quasi-normal Modes from Neutron-star Collapse
• High-energy neutrino emission from magnetised jets of rapidly rotating protomagnetars
• GRB 081024B and GRB 140402A: two additional short GRBs from binary neutron star mergers
• Systematic exploration of heavy element nucleosynthesis in protomagnetar outflows
• A Toy Model for the Electromagnetic Output of Neutron-star Merger Prompt Collapse to a Black Hole: Magnetized Neutron-star Collisions
• Magnetic Ergostars, Jet Formation and Gamma-Ray Bursts: Ergoregions versus Horizons
• General relativistic magnetohydrodynamics simulations for binary neutron star mergers