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Related papers: Neutron star properties from optimized chiral nucl…

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A new scheme for testing nuclear matter equations of state (EsoS) at high densities using constraints from neutron star phenomenology and a flow data analysis of heavy-ion collisions is suggested. An acceptable EoS shall not allow the…

We investigate how higher-order symmetry-energy coefficients of the equation of state (EOS) describing $npe\mu$ core matter impact key neutron star (NS) properties at its crust inner edge, its moment of inertia and corresponding crustal…

Nuclear Theory · Physics 2025-07-25 W. M. Seif , A. S. Hashem

Using a phenomenological form of the equation of state of neutron matter near the saturation density which has been previously demonstrated to be a good characterization of quantum Monte Carlo simulations, we show that currently available…

Nuclear Theory · Physics 2012-02-27 A. W. Steiner , S. Gandolfi

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

A precise understanding of the equation of state (EOS) of dense and hot matter is key to modeling relativistic astrophysical environments, including core-collapse supernovae (CCSNe), protoneutron star (PNSs) evolution, and compact binary…

Nuclear Theory · Physics 2020-12-08 Domenico Logoteta , Albino Perego , Ignazio Bombaci

Measurements of neutron star mass and radius or tidal deformability deliver unique insight into the equation of state (EOS) of cold dense matter. EOS inference is very often done using generalized parametric or non-parametric models which…

High Energy Astrophysical Phenomena · Physics 2024-03-25 Chun Huang , Geert Raaijmakers , Anna L. Watts , Laura Tolos , Constança Providência

Binary neutron star mergers provide a unique laboratory for studying matter under conditions that cannot be reproduced in terrestrial experiments. They probe dense matter at supranuclear density, finite temperature, rapid rotation, strong…

High Energy Astrophysical Phenomena · Physics 2026-05-27 Armen Sedrakian

We construct posterior distributions of the equation of state (EoS) for matter beyond the inner crust of neutron stars by incorporating finite nuclei (FN) constraints within relativistic mean field models. These constraints are implemented…

Nuclear Theory · Physics 2026-01-21 Anagh Venneti , Sarmistha Banik , Bijay K Agrawal

The Equation of State (EoS) of strongly interacting cold and hot ultra-dense QCD matter remains a major challenge in the field of nuclear astrophysics. With the advancements in measurements of neutron star masses, radii, and tidal…

High Energy Physics - Phenomenology · Physics 2022-09-05 Shriya Soma , Lingxiao Wang , Shuzhe Shi , Horst Stöcker , Kai Zhou

It has been conjectured that, at sufficiently high baryon densities, the equation of state (EoS) of bulk nuclear matter can be identified with that of the nucleon core. In this work, we illustrate how the energy density and pressure…

Nuclear Theory · Physics 2026-04-01 Bikram Keshari Pradhan , Guy Chanfray , Hubert Hansen , Jérôme Margueron

The equation of state (EOS) of extremely dense matter is crucial for understanding the properties of rotating neutron stars. Starting from the widely used realistic Bonn potentials rooted in a relativistic framework, we derive EOSs by…

Nuclear Theory · Physics 2025-08-06 Xiaoying Qu , Sibo Wang , Hui Tong

An equation of state (EOS) for uniform nuclear matter is constructed at zero and finite temperatures with the variational method starting from the realistic nuclear Hamiltonian composed of the Argonne V18 and UIX potentials. The energy is…

Nuclear Theory · Physics 2008-11-26 H. Kanzawa , K. Oyamatsu , K. Sumiyoshi , M. Takano

Within the framework of BCS theory and Skyrme-Hartree-Fock model, we employ various microscopic pairing gaps and effective pairing interactions to study pairing effects on the equation of state (EOS) of neutron matter and the symmetry…

Nuclear Theory · Physics 2019-10-09 Zhen Zhang , Lie-Wen Chen

Within the Dirac-Brueckner-Hartree-Fock approach, using the Bonn potentials, we investigate the properties of dense, asymmetric nuclear matter and apply it to neutron stars. In the actual calculations of the nucleon self-energies and the…

Nuclear Theory · Physics 2013-10-02 Tetsuya Katayama , Koichi Saito

Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 +- 0.04 M_sun neutron star, constrain the equation of state of neutron-rich…

Solar and Stellar Astrophysics · Physics 2013-07-23 K. Hebeler , J. M. Lattimer , C. J. Pethick , A. Schwenk

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

A modified version of the density dependent covariant density functional model proposed in [T. Malik, M. Ferreira, B. K. Agrawal and C. Provid\^encia, ApJ 930, 17 (2022)] is employed in a Bayesian analysis to determine the equation of state…

Nuclear Theory · Physics 2023-04-12 Mikhail V. Beznogov , Adriana R. Raduta

Phases of nuclear matter are crucial in the determination of physical properties of neutron stars~(NS). In the core of NS, the density and pressure become so large that the nuclear matter possibly undergoes phase transition into a…

Nuclear Theory · Physics 2021-09-01 Sitthichai Pinkanjanarod , Piyabut Burikham

Uncertainties in our knowledge of the properties of dense matter near and above nuclear saturation density are among the main sources of variations in multi-messenger signatures predicted for core-collapse supernovae (CCSNe) and the…

High Energy Astrophysical Phenomena · Physics 2019-11-13 A. S. Schneider , L. F. Roberts , C. D. Ott , E. O'connor

The historical first detection of a binary neutron star merger by the LIGO-Virgo collaboration [B. P. Abbott et al. Phys. Rev. Lett. 119, 161101 (2017)] is providing fundamental new insights into the astrophysical site for the $r$-process…

Nuclear Theory · Physics 2018-05-02 F. J. Fattoyev , J. Piekarewicz , C. J. Horowitz
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