A gravitational wave afterglow in binary neutron star mergers
arXiv:1510.00673 · doi:10.1103/PhysRevD.92.104040
Abstract
We study in detail the f-mode secular instability for rapidly rotating neutron stars, putting emphasis on supermassive models which do not have a stable nonrotating counterpart. Such neutron stars are thought to be the generic outcome of the merger of two standard mass neutron stars. In addition we take into account the effects of strong magnetic field and r-mode instability, that can drain a substantial amount of angular momentum. We find that the gravitational wave signal emitted by supramassive neutron stars can reach above the Advance LIGO sensitivity at distance of about 20Mpc and the detectability is substantially enhanced for the Einstein Telescope. The event rate will be of the same order as the merging rates, while the analysis of the signal will carry information for the equation of state of the post-merging neutron stars and the strength of the magnetic fields.
7 pages, 3 figures
References in corpus (9)
- Accurate evolutions of inspiralling neutron-star binaries: prompt and delayed collapse to black hole
- High resolution numerical-relativity simulations for the merger of binary magnetized neutron stars
- GRB afterglow plateaus and Gravitational Waves: multi-messenger signature of a millisecond magnetar?
- Spinning down newborn neutron stars: nonlinear development of the r-mode instability
- Gravitational wave asteroseismology with fast rotating neutron stars
- Gravitational waves from massive magnetars formed in binary neutron star mergers
- Oscillations of rapidly rotating relativistic stars
- On the frequency band of the f-mode CFS instability
- Saturation of the f-mode instability in neutron stars: I. Theoretical framework
Cited by in corpus (39)
- Binary neutron-star mergers: a review of Einstein's richest laboratory
- Kilonovae
- Kilonovae
- Search for post-merger gravitational waves from the remnant of the binary neutron star merger GW170817
- Rotating Stars in Relativity
- Searches for Continuous-Wave Gravitational Radiation
- Observationally constraining gravitational wave emission from short gamma-ray burst remnants
- Long-lived Remnants from Binary Neutron Star Mergers
- Neutron Star Merger Remnants
- Recent searches for continuous gravitational waves
- The evolution of binary neutron star post-merger remnants: a review
- High-Energy Neutrinos from Millisecond Magnetars formed from the Merger of Binary Neutron Stars
- Fast Rotating Relativistic Stars: Spectra and Stability without Approximation
- Radio Constraints on Long-Lived Magnetar Remnants in Short Gamma-Ray Bursts
- Gravitational waves or deconfined quarks: what causes the premature collapse of neutron stars born in short gamma-ray bursts?
- Compact Dark Objects in Neutron Star Mergers
- On the diversity of magnetar-driven kilonovae
- R-mode astronomy
- X-ray guided gravitational-wave search for binary neutron star merger remnants
- Evidence for magnetar precession in X-ray afterglows of gamma-ray bursts
- Oscillation modes of rapidly rotating neutron stars in scalar-tensor theories of gravity
- Precessing magnetars as central engines in short gamma-ray bursts
- X-ray afterglows of Short gamma-ray bursts: Magnetar or Fireball?
- Cross-correlation method for intermediate-duration gravitational wave searches associated with gamma-ray bursts
- Fast Rotating Neutron Stars: Oscillations and Instabilities
- Constraining the ellipticity of strongly magnetized neutron stars powering superluminous supernovae
- Constraining the Gravitational-Wave Afterglow From a Binary Neutron Star Coalescence
- Stochastic gravitational wave background from newly born massive magnetars: The role of a dense matter equation of state
- Saturation of the f-mode instability in neutron stars: II. Applications and results
- The stochastic background of gravitational waves due to the f-mode instability in neutron stars
- Universal Relations for Binary Neutron Star Mergers with Long-lived Remnants
- Constraining the ellipticity of new-born magnetar with the observational data of Long gamma-ray bursts
- Differentially rotating scalarized neutron stars with realistic post-merger profile
- Gravitational-wave-driven tidal secular instability in neutron star binaries
- Measuring spin in coalescing binaries of neutron stars showing double precursors
- Long-Term Postmerger Simulations of Binary Neutron Star Coalescence: Formation of Toroidal Remnants and Gravitational Wave Afterglow
- Neutron Star Merger Remnants: Braking Indices, Gravitational Waves, and the Equation Of State
- Magnetic amplification in premerger neutron stars through resonance-induced magnetorotational instabilities
- A gravitational-wave perspective on neutron-star seismology