# GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations

@article{Radice2017GW170817JC, title={GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations}, author={Davide Radice and Albino Perego and Francesco Zappa and Sebastiano Bernuzzi}, journal={The Astrophysical Journal Letters}, year={2017}, volume={852} }

Gravitational waves detected from the binary neutron star (NS) merger GW170817 constrained the NS equation of state by placing an upper bound on certain parameters, describing the binary’s tidal interactions. We show that the interpretation of the UV/optical/infrared counterpart of GW170817 with kilonova models, combined with new numerical-relativity results, imply a complementary lower bound on the tidal deformability parameter. The joint constraints tentatively rule out both extremely stiff…

## 369 Citations

### Constraints from the GW170817 merger event on thenuclear matter equation of state

- PhysicsProceedings of XIII Quark Confinement and the Hadron Spectrum — PoS(Confinement2018)
- 2019

The detection of the GW170817 neutron star merger event has incited an intense research activity towards the understanding of the nuclear matter equation of state. In this paper we compare in…

### Constraining the Neutron Star Equation of State Using Multiband Independent Measurements of Radii and Tidal Deformabilities.

- PhysicsPhysical review letters
- 2019

Using a Bayesian approach, we combine measurements of neutron star macroscopic observables obtained by astrophysical and gravitational observations to derive joint constraints on the equation of…

### Constraining the relativistic mean-field model equations of state with gravitational wave observations

- PhysicsPhysical Review C
- 2019

The first detection of gravitational waves from the binary neutron star merger event GW170817 has started to provide important new constraints on the nuclear equation of state at high density. The…

### Multimessenger Constraints for Ultradense Matter

- PhysicsPhysical Review X
- 2022

Recent rapid progress in neutron-star (NS) observations oﬀers great potential to constrain the properties of strongly interacting matter under the most extreme conditions. In order to fully exploit…

### Constraining nuclear matter parameters with GW170817

- PhysicsPhysical Review D
- 2019

The tidal measurement of gravitational waves from the binary neutron star merger event GW170817 allows us to probe nuclear physics that suffers less from astrophysical systematics compared to neutron…

### Equation of State Constraints from the Threshold Binary Mass for Prompt Collapse of Neutron Star Mergers.

- PhysicsPhysical review letters
- 2020

Considering hybrid EOSs with hadron-quark phase transition, a new, observable signature of quark matter in NS mergers is identified, which has direct applications in gravitational wave searches, kilonova interpretations, and multimessenger constraints on NS properties.

### Neutron Star Tidal Deformabilities Constrained by Nuclear Theory and Experiment.

- PhysicsPhysical review letters
- 2018

A Bayesian statistical framework is developed and employed that enables us to implement constraints on the equation of state from laboratory measurements of nuclei and state-of-the-art chiral effective field theory methods and it is found that lower bounds on the neutron star tidal deformability will very strongly constrain microscopic models of the dense matter equations of state.

### Distinguishing the nature of comparable-mass neutron star binary systems with multimessenger observations: GW170817 case study

- PhysicsPhysical Review D
- 2019

The discovery of GW170817 with gravitational waves (GWs) and electromagnetic (EM) radiation is prompting new questions in strong-gravity astrophysics. Importantly, it remains unknown whether the…

### GW170817: Constraining the nuclear matter equation of state from the neutron star tidal deformability

- PhysicsPhysical Review C
- 2018

Constraints set on key parameters of the nuclear matter equation of state (EoS) by the values of the tidal deformability, inferred from GW170817, are examined by using a diverse set of relativistic…

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