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A consistent Hartree-Fock study of the equation of state (EOS) of asymmetric nuclear matter at finite temperature has been performed using realistic choices of the effective, density dependent nucleon-nucleon (NN) interaction, which were…

核理论 · 物理学 2016-03-30 Ngo Hai Tan , Doan Thi Loan , Dao T. Khoa , Jerome Margueron

Because of the development of many-body theories of nuclear matter, the long-standing, open problem of the equation of state (EOS) of dense matter may be understood in the near future through the confrontation of theoretical calculations…

核理论 · 物理学 2020-12-02 A. Li , Z. -Y. Zhu , E. -P. Zhou , J. -M. Dong , J. -N. Hu , C. -J. Xia

Neutron stars (NSs) provide a unique laboratory to probe dark matter (DM) through its gravitational imprint on stellar evolution. We use a two-fluid framework with non-annihilating, asymmetric DM, both fermionic and bosonic, that interacts…

Twin stars-two stable neutron stars (NSs) with the same mass but different radii have long been proposed to appear as a consequence of a possible first-order phase transition in NS matter. Within a meta-model for the EOS of hybrid stars, we…

核理论 · 物理学 2025-02-13 Nai-Bo Zhang , Bao-An Li

We examine the correlations of neutron star radii with the nuclear matter incompressibility, symmetry energy, and their slopes, which are the key parameters of the equation of state (EoS) of asymmetric nuclear matter. The neutron star radii…

核理论 · 物理学 2016-11-15 N. Alam , B. K. Agrawal , M. Fortin , H. Pais , C. Providência , Ad. R. Raduta , A. Sulaksono

Due to the dense environment, neutron stars (NSs) can serve as an ideal laboratory for studying the interactions between dark matter (DM) and ordinary matter. In the process of DM capture, deep inelastic scattering may dominate over elastic…

高能物理 - 唯象学 · 物理学 2024-09-11 Liangliang Su , Lei Wu , Meiwen Yang

We calculate for the first time the phonon excitation rate in the outer crust of a neutron star due to scattering from light dark matter (LDM) particles gravitationally boosted into the star. We consider dark matter particles in the sub-GeV…

高能天体物理现象 · 物理学 2017-05-09 Marina Cermeño , M. Ángeles Pérez-García , Joseph Silk

Measurements of neutron-star macrophysical properties thanks to multimessenger observations offer the possibility to constrain the properties of nuclear matter. Indeed cold and dense matter as found inside neutron stars, in particular in…

高能天体物理现象 · 物理学 2021-07-09 Lami Suleiman , Morgane Fortin , Julian Leszek Zdunik , Pawel Haensel

In numerical simulations of core-collapse supernova and binary neutron stars mergers, information about the energetics and composition of matter is implemented via external tables covering the huge ranges of thermodynamic conditions…

核理论 · 物理学 2025-09-11 Adriana R. Raduta , Mikhail V. Beznogov

In recent years, researchers have become increasingly interested in understanding how dark matter affects neutron stars, helping them to better understand complex astrophysical phenomena. In this paper, we delve deeper into this problem by…

高能物理 - 唯象学 · 物理学 2024-01-17 Prashant Thakur , Tuhin Malik , T. K. Jha

Dark matter (DM) may be captured around a neutron star (NS) through DM-nucleon interactions. We observe that the enhancement of such capturing is particularly significant when the DM velocity and/or momentum transfer depend on the…

高能物理 - 唯象学 · 物理学 2024-04-11 Chih-Ting Lu , Arvind Kumar Mishra , Lei Wu

One of the most intriguing consequence of the extreme conditions inside neutron stars is the possibility of the natural existence of a deconfined strange quark matter phase in the high density interior of the star. The equation of state…

天体物理学 · 物理学 2007-05-23 K. Schertler , C. Greiner , M. H. Thoma

Compact stellar objects are promising cosmic laboratories to test the nature of dark matter (DM). DM captured by the strong gravitational field of these stellar remnants transfers kinetic energy to the star during the collision. This can…

高能物理 - 唯象学 · 物理学 2023-07-07 Sandra Robles

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

Using the nuclear symmetry energy that has been recently constrained by the isospin diffusion data in intermediate-energy heavy ion collisions, we have studied the transition density and pressure at the inner edge of neutron star crusts,…

核理论 · 物理学 2014-11-20 Jun Xu , Che Ming Ko , Lie-Wen Chen , Bao-an Li , Hong-Ru Ma

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

Motivated by the recent observation of high-mass pulsars ($M \simeq 2 M_{\odot}$), we employ the $\sigma$-cut potential on the equation of state (EOS) of high-density matter and the properties of neutron stars within the relativistic…

核理论 · 物理学 2022-11-22 N. K. Patra , B. K. Sharma , A. Reghunath , A. K. H. Das , T. K. Jha

The effect of isospin-dependent nuclear forces on the inner crust of neutron stars is modeled within the framework of Quantum Molecular Dynamics (QMD). To successfully control the density dependence of the symmetry energy of neutron-star…

核理论 · 物理学 2022-07-14 Parit Mehta , Rana Nandi , R. O. Gomes , V. Dexheimer , J. Steinheimer

We explore the density variation of the correlation coefficient of the key parameters of the nuclear equation of state (EoS) with the bulk and crustal properties of neutron stars. The analysis was performed using two diverse sets of nuclear…

核理论 · 物理学 2025-06-26 Naosad Alam , Subrata Pal

The equation of state (EOS) for neutron star (NS) crusts is studied in the Thomas-Fermi (TF) approximation using the EOS for uniform nuclear matter obtained by the variational method with the realistic nuclear Hamiltonian. The parameters…

核理论 · 物理学 2010-01-07 H. Kanzawa , M. Takano , K. Oyamatsu , K. Sumiyoshi