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The equation of state (EoS) of neutron star (NS) matter is investigated considering kaon condensation. Moreover, the tidal parameters related to the components of binary neutron star mergers are determined and compared to the constraints of…

High Energy Astrophysical Phenomena · Physics 2021-12-21 Z. Sharifi , M. Bigdeli , D. Alvarez-Castillo , E. Nasiri

We show how observations of gravitational waves from binary neutron star (BNS) mergers over the next few years can be combined with insights from nuclear physics to obtain useful constraints on the equation of state (EoS) of dense matter,…

High Energy Astrophysical Phenomena · Physics 2019-10-23 Michael McNeil Forbes , Sukanta Bose , Sanjay Reddy , Dake Zhou , Arunava Mukherjee , Soumi De

Recently exploratory studies were performed on the possibility of constraining the neutron star equation of state (EOS) using signals from coalescing binary neutron stars, or neutron star-black hole systems, as they will be seen in upcoming…

General Relativity and Quantum Cosmology · Physics 2015-08-05 Michalis Agathos , Jeroen Meidam , Walter Del Pozzo , Tjonnie G. F. Li , Marco Tompitak , John Veitch , Salvatore Vitale , Chris Van Den Broeck

We consider the influence of potential quark matter existing at high densities in neutron star interiors on gravitational waves (GW) emitted in a binary neutron star merger event. Two types of equations of state (EoS) at zero temperatures…

Astrophysics · Physics 2009-11-10 R. Oechslin , K. Uryū , G. Poghosyan , F. K. Thielemann

We investigate the possibility that GW170817 has not been the merger of two conventional neutron stars (NS) but involved at least one if not two hybrid stars with a quark matter core which might even belong to a third family of compact…

High Energy Astrophysical Phenomena · Physics 2020-06-12 David Blaschke , Alexander Ayriyan , David Alvarez-Castillo , Hovik Grigorian

The first detection of gravitational waves from a neutron star-neutron star merger, GW170817, has opened up a new avenue for constraining the ultradense-matter equation of state (EOS). The deviation of the observed waveform from a…

High Energy Astrophysical Phenomena · Physics 2019-06-26 Carolyn A. Raithel

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

The LIGO-Virgo collaboration ground-breaking detection of the binary neutron-star merger event, GW170817, has intensified efforts towards the understanding of the equation of state (EoS) of nuclear matter. In this letter, we compare…

Nuclear Experiment · Physics 2018-07-18 C. Y. Tsang , M. B. Tsang , P. Danielewicz , W. G. Lynch , F. J. Fattoyev

Gravitational-wave measurements of the tidal deformability in neutron-star binary coalescences can be used to infer the still unknown equation of state (EoS) of dense matter above the nuclear saturation density. By employing a…

General Relativity and Quantum Cosmology · Physics 2022-03-23 Costantino Pacilio , Andrea Maselli , Margherita Fasano , Paolo Pani

From the very first multimessenger event of GW170817, clean robust constraints can be obtained for the tidal deformabilities of the two stars involved in the merger, which provides us unique opportunity to study the equation of states…

Nuclear Theory · Physics 2019-07-23 Ang Li , Zhen-Yu Zhu

In simulations of binary neutron star mergers, the dense matter equation of state (EOS) is required over wide ranges of density and temperature as well as under conditions in which neutrinos are trapped, and the effects of magnetic fields…

High Energy Astrophysical Phenomena · Physics 2019-02-20 S. Lalit , M. A. A. Mamun , C. Constantinou , M. Prakash

The LIGO-Virgo collaboration ground-breaking detection of the binary neutron-star merger event, GW170817, has expanded efforts to understand the Equation of State (EoS) of nuclear matter. These measurements provide new constraints on the…

Nuclear Experiment · Physics 2019-01-24 C. Y. Tsang , M. B. Tsang , P. Danielewicz , W. G. Lynch , F. J. Fattoyev

Studying the properties of ultra-dense matter is one of the key goals of modern neutron star research. The measurement of the tidal deformability from the inspiral of a binary neutron star merger offers one promising method for constraining…

High Energy Astrophysical Phenomena · Physics 2023-07-26 Carolyn A. Raithel , Elias R. Most

Observations of gravitational-wave signals from binary neutron-star mergers, like GW170817, can be used to constrain the neutron-star equation of state (EoS). One method involves modeling the EoS and measuring the model parameters through…

General Relativity and Quantum Cosmology · Physics 2019-01-09 Matthew F. Carney , Leslie E. Wade , Burke S. Irwin

Ab initio methods using weakly interacting nucleons give a good description of condensed nuclear matter up to densities comparable to the nuclear saturation density. At higher densities palpable strong interactions between overlapping…

High Energy Physics - Phenomenology · Physics 2021-04-14 Niko Jokela , Matti Jarvinen , Govert Nijs , Jere Remes

The recent detection of gravitational waves from merging neutron star events has opened a new window on the many unknown aspects of their internal dynamics. A key role in this context is played by the transition from baryon to quark matter…

High Energy Physics - Phenomenology · Physics 2019-10-08 Abha Rajan , Tyler Gorda , Simonetta Liuti , Kent Yagi

We simulate the merger of binary neutron stars and analyze the spectral properties of their gravitational waveforms. For the stars we construct hybrid equations of state (EoSs) with a standard nuclear matter EoS at low densities,…

High Energy Astrophysical Phenomena · Physics 2020-05-13 Christian Ecker , Matti Järvinen , Govert Nijs , Wilke van der Schee

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

The LIGO/Virgo detection of gravitational waves originating from a neutron-star merger, GW170817, has recently provided new stringent limits on the tidal deformabilities of the stars involved in the collision. Combining this measurement…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Eemeli Annala , Tyler Gorda , Aleksi Kurkela , Aleksi Vuorinen

Gravitational-wave observations of inspiralling binary neutron star systems can be used to measure the neutron-star equation of state (EOS) through the tidally induced shift in the waveform phase that depends on the tidal deformability…

General Relativity and Quantum Cosmology · Physics 2015-03-05 Benjamin D. Lackey , Leslie Wade
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