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We present predictions for neutron star tidal deformabilities obtained from a Bayesian analysis of the nuclear equation of state, assuming a minimal model at high-density that neglects the possibility of phase transitions. The Bayesian…

Nuclear Theory · Physics 2019-12-17 Y. Lim , J. W. Holt

We use gravitational-wave observations of the binary neutron star merger GW170817 to explore the tidal deformabilities and radii of neutron stars. We perform Bayesian parameter estimation with the source location and distance informed by…

High Energy Astrophysical Phenomena · Physics 2018-11-01 Soumi De , Daniel Finstad , James M. Lattimer , Duncan A. Brown , Edo Berger , Christopher M. Biwer

The observation of the gravitational wave signal GW170817, consistent with emission from the inspiral of a binary neutron-star system, provided information on the tidal deformation of the participating stars. The available data may be…

Nuclear Theory · Physics 2020-05-06 Andrea Sabatucci , Omar Benhar

Neutron star is the ultimate testing place for the physics of dense nuclear matter. Before the detection of gravitational waves from the merger of binary neutron stars, various nuclear equations of state have been used to estimate the…

Nuclear Theory · Physics 2020-06-03 Young-Min Kim , Kyujin Kwak , Chang Ho Hyun , Hana Gil , Chang-Hwan Lee

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 star radius measurements with…

General Relativity and Quantum Cosmology · Physics 2021-01-19 Zack Carson , Andrew W. Steiner , Kent Yagi

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 and non-relativistic mean field models.…

Nuclear Theory · Physics 2018-10-03 Tuhin Malik , N. Alam , M. Fortin , C. Providência , B. K. Agrawal , T. K. Jha , Bharat Kumar , S. K. Patra

Gravitational-wave observations of binary neutron star coalescences constrain the neutron-star equation of state by enabling measurement of the tidal deformation of each neutron star. This deformation is determined by the tidal…

High Energy Astrophysical Phenomena · Physics 2020-11-18 Francisco Hernandez Vivanco , Rory Smith , Eric Thrane , Paul D. Lasky

Properties of neutron stars in GW170817 are investigated using different equations of state (EoS) involving nucleons, $\Lambda$ hyperons, quarks resulting in $2M_{\odot}$ neutron stars. This calculation is performed using the same EoS for…

High Energy Astrophysical Phenomena · Physics 2019-01-02 Sajad A. Bhat , Debades Bandyopadhyay

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 state (EoS) of matter at supranuclear…

High Energy Astrophysical Phenomena · Physics 2019-10-09 Margherita Fasano , Tiziano Abdelsalhin , Andrea Maselli , Valeria Ferrari

Gravitational waves from neutron-star mergers are expected to provide stringent constraints on the structure of neutron stars. At the same time, recent advances in nuclear theory have enabled reliable calculations of the low density…

Nuclear Theory · Physics 2019-09-04 I. Tews , J. Margueron , S. Reddy

To relate constraints from nuclear physics to the tidal deformabilities of neutron stars, we construct a neutron star model that accepts input from a large collection of Skyrme density functions to calculate properties of 1.4 solar-mass…

Nuclear Experiment · Physics 2018-11-13 M. B. Tsang , C. Y. Tsang , P. Danielewicz , W. G. Lynch , F. J. Fattoyev

The agreement of the nuclear equation of state (EoS) deduced from the GW170817 based tidal deformability with the one obtained from empirical data on microscopic nuclei is examined. It is found that suitably chosen experimental data on…

Nuclear Theory · Physics 2019-05-29 Tuhin Malik , B. K. Agrawal , J. N. De , S. K. Samaddar , C. Providência , C. Mondal , T. K. Jha

The tidal deformability probability distribution extracted from GW170817 alone, or including multi-messenger information, is confronted to astrophysical and nuclear physics additional constraints within a semi-agnostic approach for the…

Nuclear Theory · Physics 2020-07-31 H. Güven , K. Bozkurt , E. Khan , J. Margueron

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 tidal deformability bound of GW170817…

High Energy Astrophysical Phenomena · Physics 2019-05-29 Rana Nandi , Prasanta Char , Subrata Pal

Because all neutron stars share a common equation of state, tidal deformability constraints from the compact binary coalescence GW170817 have implications for the properties of neutron stars in other systems. Using equation-of-state…

General Relativity and Quantum Cosmology · Physics 2019-07-03 Bharat Kumar , Philippe Landry

Gravitational waves from the coalescence of two neutron stars were recently detected for the first time by the LIGO-Virgo collaboration, in event GW170817. This detection placed an upper limit on the effective tidal deformability of the two…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Carolyn Raithel , Feryal Özel , Dimitrios Psaltis

We investigate the constraints on the mass and radius of neutron stars by considering the tidal deformability in the merge of neutron star binaries. In order to extract the most reliable range of uncertainty from theory, we employ models…

Nuclear Theory · Physics 2019-01-02 Young-Min Kim , Yeunhwan Lim , Kyujin Kwak , Chang Ho Hyun , Chang-Hwan Lee

Gravitational wave measurements of binary neutron star coalescences offer information about the properties of the extreme matter that comprises the stars. Despite our expectation that all neutron stars in the Universe obey the same equation…

General Relativity and Quantum Cosmology · Physics 2018-05-30 Katerina Chatziioannou , Carl-Johan Haster , Aaron Zimmerman

Neutron stars are unique testbeds for exploring the physics of strongly interacting matter in extreme regimes of density, temperature, and isospin that are not accessible anywhere else in the universe. The nature of neutron star matter can…

Nuclear Theory · Physics 2019-12-04 Andreas Guerra Chaves , Tanja Hinderer

Advanced ground-based gravitational-wave detectors are capable of measuring tidal influences in binary neutron-star systems. In this work, we report on the statistical uncertainties in measuring tidal deformability with a full Bayesian…

General Relativity and Quantum Cosmology · Physics 2014-05-28 Leslie Wade , Jolien D. E. Creighton , Evan Ochsner , Benjamin D. Lackey , Benjamin F. Farr , Tyson B. Littenberg , Vivien Raymond
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