中文
相关论文

相关论文: New constraints on the neutron-star mass and radiu…

200 篇论文

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…

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

We introduce a parameterized high-density equation of state (EOS) in order to systematize the study of constraints placed by astrophysical observations on the nature of neutron-star matter. To obtain useful constraints, the number of…

天体物理学 · 物理学 2009-07-09 Jocelyn S. Read , Benjamin D. Lackey , Benjamin J. Owen , John L. Friedman

Within the parameter space of equation of state (EOS) of dense neutron-rich matter limited by existing constraints mainly from terrestrial nuclear experiments, we investigate how the neutron star maximum mass $M_{\rm{max}}>2.01\pm0.04$…

核理论 · 物理学 2018-05-30 Nai-Bo Zhang , Bao-An Li , Jun Xu

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…

高能天体物理现象 · 物理学 2024-03-25 Chun Huang , Geert Raaijmakers , Anna L. Watts , Laura Tolos , Constança Providência

Taking into account the terrestrial experiments and the recent astrophysical observations of neutron stars and gravitational-wave signals, we impose restrictions on the equation of state (EoS) for isospin-asymmetric nuclear matter. Using…

核理论 · 物理学 2021-03-18 Soonchul Choi , Tsuyoshi Miyatsu , Myung-Ki Cheoun , Koichi Saito

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

Properties and structure of neutron stars are determined by the equation of state (EOS) of neutron-rich stellar matter. While the collective flow and particle production in relativistic heavy-ion collisions have constrained tightly the EOS…

天体物理学 · 物理学 2008-04-22 Aaron Worley , Plamen G. Krastev , Bao-An Li

The equation of state (EOS) for neutron stars is modeled using the Relativistic Mean Field (RMF) approach with a mesonic nonlinear (NL) interaction, a modified sigma cut potential (NL-$\sigma$ cut), and the influences of dark matter in the…

The equation of state (EOS) of dense matter has been a long-sought goal of nuclear physics. Equations of state generate unique mass versus radius (M-R) relations for neutron stars, the ultra-dense remnants of stellar evolution. In this…

核理论 · 物理学 2015-06-05 Andrew W. Steiner , James M. Lattimer , Edward F. Brown

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

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

In view of the great uncertainty of the equation of state (EOS) of high-density nuclear matter, establishing EOS-independent universal relations between global properties of neutron stars provides a practical way to constrain the…

高能天体物理现象 · 物理学 2025-03-07 Zehan Wu , Dehua Wen

The uncertainties in neutron star (NS) radii and crust properties due to our limited knowledge of the equation of state (EOS) are quantitatively analysed. We first demonstrate the importance of a unified microscopic description for the…

太阳与恒星天体物理 · 物理学 2016-10-12 M. Fortin , C. Providencia , A. R. Raduta , F. Gulminelli , J. L Zdunik , P. Haensel , M. Bejger

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…

Neutron-star radii provide useful information on the equation of state of neutron rich matter. Particularly interesting is the density dependence of the equation of state (EOS). For example, the softening of the EOS at high density, where…

核理论 · 物理学 2009-11-07 J. Carriere , C. J. Horowitz , J. Piekarewicz

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

Recent analyses of several isospin effects in heavy-ion reactions have allowed us to constrain the density dependence of nuclear symmetry energy at sub-saturation densities within a narrow range. Combined with constraints on the Equation of…

核理论 · 物理学 2008-06-24 Bao-An Li , Lie-Wen Chen , Che Ming Ko , Plamen G. Krastev , Aaron Worley

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…

核理论 · 物理学 2026-01-21 Anagh Venneti , Sarmistha Banik , Bijay K Agrawal

Heavy-ion reactions provide a unique means to investigate the equation of state (EOS) of neutron-rich nuclear matter, especially the density dependence of the nuclear symmetry energy $E_{sym}(\rho)$. The latter plays an important role in…

‹ 上一页 1 2 3 10 下一页 ›