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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…

高能天体物理现象 · 物理学 2019-10-09 Margherita Fasano , Tiziano Abdelsalhin , Andrea Maselli , Valeria Ferrari

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…

高能天体物理现象 · 物理学 2019-06-26 Carolyn A. Raithel

We perform a systematic analysis of neutron star radius constraints from five quiescent low-mass X-ray binaries and examine how they depend on measurements of their distances and amounts of intervening absorbing material, as well as their…

高能天体物理现象 · 物理学 2014-03-20 James M. Lattimer , Andrew W. Steiner

It is well known that the equation of state (EoS) of compact objects like neutron and quark stars is not determined despite there are several sophisticated models to describe it. From the electromagnetic observations, summarized in…

We construct a combined model to incorporate neutron star (NS) mass measurements with electromagnetic mass-radius constraints and gravitational-wave observations using Bayesian inference. We use different mass distributions for three…

高能天体物理现象 · 物理学 2025-12-22 Mahmudul Hasan Anik , Andrew W. Steiner , Richard O'Shaughnessy

We investigate the constraints on the neutron star equation of state (EoS) and nuclear properties achievable with third-generation gravitational wave detectors using the Fisher information matrix approach within the relativistic mean field…

高能天体物理现象 · 物理学 2026-05-29 Zhenyu Zhu , Richard O'Shaughnessy

The equations of state (EoSs) governing neutron star (NS) matter obtained for both non-relativistic and relativistic mean-field models are systematically confronted with a diverse set of terrestrial data and astrophysical observations…

核理论 · 物理学 2024-05-20 Sk Md Adil Imam , Tuhin Malik , Constança Providência , B. K. Agrawal

Future high-precision X-ray and gravitational-wave observations of neutron stars (NSs) are expected to constrain NS radii with uncertainties as small as $\sigma \simeq 0.1$~km. Such unprecedented precision offers a unique opportunity to…

高能天体物理现象 · 物理学 2026-02-17 Bao-An Li , Xavier Grundler , Wen-Jie Xie , Nai-Bo Zhang

Through continuous progress in nuclear theory and experiment and an increasing number of neutron-star observations, a multitude of information about the equation of state (EOS) for matter at extreme densities is available. To constrain the…

With ongoing advancements in nuclear theory and experimentation, together with a growing body of neutron star (NS) observations, a wealth of information on the equation of state (EOS) for matter at extreme densities has become accessible.…

高能天体物理现象 · 物理学 2025-07-18 Bhaskar Biswas , Stephan Rosswog

We present a Bayesian framework for joint and coherent analyses of multimessenger binary neutron star signals. The method, implemented in our bajes infrastructure, incorporates a joint likelihood for multiple datasets, support for various…

高能天体物理现象 · 物理学 2024-09-04 Matteo Breschi , Rossella Gamba , Gregorio Carullo , Daniel Godzieba , Sebastiano Bernuzzi , Albino Perego , David Radice

Neutron star observations, including direct mass and radius measurements as well as the analysis of gravitational wave signals emitted by stellar mergers, provide valuable and unique insights into the properties of strongly interacting…

核理论 · 物理学 2019-02-20 Aleksi Vuorinen

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,…

高能天体物理现象 · 物理学 2019-10-23 Michael McNeil Forbes , Sukanta Bose , Sanjay Reddy , Dake Zhou , Arunava Mukherjee , Soumi De

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

核理论 · 物理学 2019-06-24 I. Tews , J. Margueron , S. Reddy

We perform a Bayesian inference of the dense-matter equation of state (EOS) within a unified framework that incorporates hadronic matter, quark matter, and a smooth hadron-to-quark crossover. The EOS is constrained using physical…

核理论 · 物理学 2026-05-11 Xavier Grundler , Bao-An Li

Exploiting a very large library of physically plausible equations of state (EOSs) containing more than $10^{7}$ members and yielding more than $10^{9}$ stellar models, we conduct a survey of the impact that a neutron-star radius measurement…

高能天体物理现象 · 物理学 2019-08-16 Lukas R. Weih , Elias R. Most , Luciano Rezzolla

The equation of state (EoS) of the neutron star (NS) matter remains an enigma. In this work we perform the Bayesian parameter inference with the gravitational wave data (GW170817) and mass-radius observations of some NSs (PSR J0030+0451,…

高能天体物理现象 · 物理学 2021-03-23 Shao-Peng Tang , Jin-Liang Jiang , Wei-Hong Gao , Yi-Zhong Fan , Da-Ming Wei

We explore constraints on the equation of state (EOS) of neutron-rich matter based on microscopic calculations up to nuclear densities and observations of neutron stars. In a previous work we showed that predictions based on modern nuclear…

高能天体物理现象 · 物理学 2020-10-08 S. K. Greif , K. Hebeler , J. M. Lattimer , C. J. Pethick , A. Schwenk

We investigate constraints on the high-density equation of state (EOS) of neutron star matter by analyzing the probability distributions of the endpoints of mass-radius M(R) sequences within a Bayesian weighting framework. Starting from two…

高能天体物理现象 · 物理学 2026-05-04 Gábor Kasza , György Wolf

Using an explicitly isospin-dependent parametric Equation of State (EOS) for the core of neutron stars (NSs) within the Bayesian statistical approach, we infer the EOS parameters of super-dense neutron-rich nuclear matter from three sets of…

高能天体物理现象 · 物理学 2020-08-07 Wen-Jie Xie , Bao-An Li
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