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相关论文: Consistent Skyrme parametrizations constrained by …

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Recently, the radius of neutron star (NS) PSR J0740+6620 was measured by Neutron Star Interior Composition Explorer (NICER) and an updated measurement of neutron skin thickness of ${}^{208}$Pb ($R_{\rm skin}^{208}$) was reported by the…

核理论 · 物理学 2021-09-22 Shao-Peng Tang , Jin-Liang Jiang , Ming-Zhe Han , Yi-Zhong Fan , Da-Ming Wei

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

In this latest of our series of Skyrme-HFB mass models, HFB-16, we introduce the new feature of requiring that the contact pairing force reproduce at each density the $^1S_0$ pairing gap of neutron matter as determined in microscopic…

核理论 · 物理学 2008-11-26 N. Chamel , S. Goriely , J. M. Pearson

Employing a recently proposed metamodeling for the nucleonic matter equation of state we analyze neutron star global properties such as masses, radii, momentum of inertia, and others. The impact of the uncertainty on empirical parameters on…

核理论 · 物理学 2018-03-07 J. Margueron , R. Hoffmann Casali , F. Gulminelli

We introduce a new, powerful method to constrain properties of neutron stars (NSs). We show that the total mass of GW170817 provides a reliable constraint on the stellar radius if the merger did not result in a prompt collapse as suggested…

高能天体物理现象 · 物理学 2017-12-13 Andreas Bauswein , Oliver Just , Hans-Thomas Janka , Nikolaos Stergioulas

We analyze the role of the symmetry energy slope parameter $L$ on the {\it r}-mode instability of neutron stars. Our study is performed using both microscopic and phenomenological approaches of the nuclear equation of state. The microscopic…

核理论 · 物理学 2012-04-25 Isaac Vidana

The first detection of gravitational waves from the binary neutron star merger event GW170817 has started to provide important new constraints on the nuclear equation of state at high density. The tidal deformability bound of GW170817…

高能天体物理现象 · 物理学 2019-05-29 Rana Nandi , Prasanta Char , Subrata Pal

The effect of correlations between the slope and the curvature of the symmetry energy on ground state nuclear observables is studied within the extended Thomas-Fermi approximation. We consider different isovector probes of the symmetry…

核理论 · 物理学 2018-06-20 Ad. R. Raduta , F. Gulminelli

In this work we have analyzed several features of symmetric nuclear matter (SNM) at finite temperature described by different zero- and finite-range nonrelativistic families of models, namely, Skyrme, Gogny, Momentum-dependent interaction…

核理论 · 物理学 2021-03-17 Mariana Dutra , Odilon Lourenço , Xavier Viñas , C. Mondal

We search for possible correlations between neutron star observables and thermodynamic quantities that characterize high density nuclear matter. We generate a set of model-independent equations of state describing stellar matter from a…

核理论 · 物理学 2020-03-04 Márcio Ferreira , M. Fortin , Tuhin Malik , B. K. Agrawal , Constança Providência

We investigate how vector-isoscalar and vector-isovector interactions can be determined within the density regime of neutron stars (NSs), while fulfilling nuclear and astrophysics constrains. We make use of the Chiral Mean Field (CMF)…

核理论 · 物理学 2024-09-04 Tuhin Malik , Veronica Dexheimer , Constança Providência

The mass-dependent symmetry energy coefficients $a_{sym}(A)$ has been extracted by analysing the heavy nuclear mass differences reducing the uncertainties as far as possible in our previous work. Taking advantage of the obtained symmetry…

核理论 · 物理学 2015-05-08 Xiaohua Fan , Jianmin Dong , Wei Zuo

The accurate observations of neutron stars have deepened our knowledge of both general relativity and the properties of nuclear physics at large densities. Relating observations to the microphysics that govern these stars can sometimes be…

广义相对论与量子宇宙学 · 物理学 2024-07-09 Jayana A. Saes , Raissa F. P. Mendes , Nicolás Yunes

The non-relativistic model of nuclear matter with Brussels extended Skyrme interactions is employed in order to build, within a Bayesian approach, models for the dense matter equation of state (EOS). In addition to a minimal set of…

核理论 · 物理学 2024-09-12 Mikhail V. Beznogov , Adriana R. Raduta

Using in-medium hadron properties according to the Brown-Rho scaling due to the chiral symmetry restoration at high densities and considering naturalness of the coupling constants, we have newly constructed several relativistic mean-field…

核理论 · 物理学 2008-11-26 Wei-Zhou Jiang , Bao-An Li , Lie-Wen Chen

We study the nuclear symmetry energy S(rho) and related quantities of nuclear physics and nuclear astrophysics predicted generically by relativistic mean-field (RMF) and Skyrme-Hartree-Fock (SHF) models. We establish a simple prescription…

核理论 · 物理学 2012-08-27 F. J. Fattoyev , W. G. Newton , Jun Xu , Bao-An Li

We present BSkG3, the latest entry in the Brussels-Skyrme-on-a-grid series of large-scale models of nuclear structure based on an energy density functional. Compared to its predecessors, the new model offers a more realistic description of…

We study the relationship between the stability level of late-type galaxy disks and their star-formation activity using integral-field gaseous and stellar kinematic data. Specifically, we compare the two-component (gas+stars) stability…

Quasi-universal relations are known to exist among various neutron star observables that do not depend sensitively on the underlying nuclear matter equations of state. For example, some of these relations imply that the tidally induced…

广义相对论与量子宇宙学 · 物理学 2025-07-15 Takuya Katagiri , Gowtham Rishi Mukkamala , Kent Yagi

The first results of a new three-dimensional, finite temperature Skyrme-Hartree-Fock+BCS study of the properties of inhomogeneous nuclear matter at densities and temperatures leading to the transition to uniform nuclear matter are…

太阳与恒星天体物理 · 物理学 2009-05-05 W. G. Newton J. R. Stone