# Spectral classification of gravitational-wave emission and equation of state constraints in binary neutron star mergers

@article{Bauswein2019SpectralCO, title={Spectral classification of gravitational-wave emission and equation of state constraints in binary neutron star mergers}, author={Andreas Bauswein and Nikolaos Stergioulas}, journal={Journal of Physics G: Nuclear and Particle Physics}, year={2019} }

The first detection of gravitational waves from a binary neutron star merger (GW170817) and the accompanying electromagnetic emission has impressively advanced our understanding of the merger process and has set some first constraints on the macroscopic properties of neutron stars, with direct implications for the high-density equation of state. We discuss work on neutron star mergers focusing on the postmerger gravitational-wave emission. These studies are based on numerical simulations of the…

## Figures from this paper

## 27 Citations

Phase transitions in neutron stars and their links to gravitational waves

- PhysicsJournal of Physics G: Nuclear and Particle Physics
- 2019

The recent direct observation of gravitational wave event $GW170817$ and its $GRB170817A$ signal has opened up a new window to study neutron stars and heralds a new era of Astronomy referred to as…

Impact of the nuclear symmetry energy on the post-merger phase of a binary neutron star coalescence

- PhysicsPhysical Review D
- 2021

The nuclear symmetry energy plays a key role in determining the equation of state of dense, neutron-rich matter, which governs the properties of both terrestrial nuclear matter as well as…

Gravitational waves from neutron star mergers and their relation to the nuclear equation of state

- PhysicsProgress in Particle and Nuclear Physics
- 2019

The evolution of binary neutron star post-merger remnants: a review

- PhysicsGeneral Relativity and Gravitation
- 2021

Two neutron stars merge somewhere in the Universe approximately every 10 seconds, creating violent explosions observable in gravitational waves and across the electromagnetic spectrum. The…

Characterizing the Breakdown of Quasi-universality in Postmerger Gravitational Waves from Binary Neutron Star Mergers

- PhysicsThe Astrophysical Journal Letters
- 2022

The postmerger gravitational wave (GW) emission from a binary neutron star merger is expected to provide exciting new constraints on the dense-matter equation of state (EoS). Such constraints rely,…

Empirical relations for gravitational-wave asteroseismology of binary neutron star mergers

- PhysicsPhysical Review D
- 2020

We construct new, multivariate empirical relations for measuring neutron star radii and tidal deformabilities from the dominant gravitational wave frequency in the postmerger phase of binary neutron…

Hadron matter in neutron stars in view of gravitational wave observations

- PhysicsProgress in Particle and Nuclear Physics
- 2019

Impact of quark deconfinement in neutron star mergers and hybrid star mergers

- Physics
- 2020

We describe an unambiguous gravitational-wave signature to identify the occurrence of a strong phase transition from hadronic matter to deconfined quark matter in neutron star mergers. Such a phase…

Numerical-relativity simulations of long-lived remnants of binary neutron star mergers

- PhysicsPhysical Review D
- 2020

We analyze the properties of the gravitational wave signal emitted after the merger of a binary neutron star system when the remnant survives for more than a 80 ms (and up to 140ms). We employ four…

Astrophysical constraints on compact objects in 4D Einstein-Gauss-Bonnet gravity

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2022

We study the properties of compact objects in a particular 4D Horndeski theory originating from higher dimensional Einstein-Gauss-Bonnet gravity. Remarkably, an exact vacuum solution is known. This…

## References

SHOWING 1-10 OF 192 REFERENCES

Gravitational-wave signal from binary neutron stars: A systematic analysis of the spectral properties

- Physics
- 2016

A number of works have shown that important information on the equation of state of matter at nuclear density can be extracted from the gravitational waves emitted by merging neutron-star binaries.…

Prospects For High Frequency Burst Searches Following Binary Neutron Star Coalescence With Advanced Gravitational Wave Detectors

- Physics
- 2014

The equation of state plays a critical role in the physics of the merger of two neutron stars. Recent numerical simulations with microphysical equation of state suggest the outcome of such events…

Spectral properties of the post-merger gravitational-wave signal from binary neutron stars

- Physics
- 2015

Extending previous work by a number of authors, we have recently presented a new approach in which the detection of gravitational waves from merging neutron star binaries can be used to determine the…

Low mass binary neutron star mergers : gravitational waves and neutrino emission

- Physics
- 2016

Neutron star mergers are among the most promising sources of gravitational waves for advanced ground-based detectors. These mergers are also expected to power bright electromagnetic signals, in the…

Inferring the post-merger gravitational wave emission from binary neutron star coalescences

- Physics
- 2017

We present a robust method to characterize the gravitational wave emission from the remnant of a neutron star coalescence. Our approach makes only minimal assumptions about the morphology of the…

Confronting gravitational-wave observations with modern nuclear physics constraints

- PhysicsThe European Physical Journal A
- 2019

Abstract.Multi-messenger observations of neutron star (NS) mergers have the potential to revolutionize nuclear astrophysics. They will improve our understanding of nucleosynthesis, provide insights…

Observing Gravitational Waves From The Post-Merger Phase Of Binary Neutron Star Coalescence

- Physics
- 2015

We present an effective, low-dimensionality frequency-domain template for the gravitational wave (GW) signal from the stellar remnants from binary neutron star (BNS) coalescence. A principal…

Spectral analysis of gravitational waves from binary neutron star merger remnants

- Physics
- 2017

In this work we analyze the gravitational wave signal from hypermassive neutron stars formed after the merger of binary neutron star systems, focusing on its spectral features. The gravitational wave…

A unified picture of the post-merger dynamics and gravitational wave emission in neutron-star mergers

- Physics
- 2015

We introduce a classification scheme of the post-merger dynamics and gravitational-wave emission in binary neutron star mergers, after identifying a new mechanism by which a secondary peak in the…

Measuring the neutron star equation of state with gravitational wave observations

- Physics, Geology
- 2009

We report the results of a first study that uses numerical simulations to estimate the accuracy with which one can use gravitational wave observations of double neutron-star inspiral to measure…