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相关论文: Prior probability distributions of neutron star cr…

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We present a systematic survey the range of predictions of the neutron star inner crust composition, crust-core transition densities and pressures, and density range of the nuclear `pasta' phases at the bottom of the crust provided by the…

太阳与恒星天体物理 · 物理学 2015-05-30 W. G. Newton , M. Gearheart , Bao-An Li

The interior of a neutron star is expected to exhibit different states of matter. In particular, complex non-spherical configurations known as `pasta' phases may exist at the highest densities in the inner crust, potentially having an…

核理论 · 物理学 2021-10-28 H. Dinh Thi , T. Carreau , A. F. Fantina , F. Gulminelli

Nuclear pasta, that is an inhomogeneous distribution of nuclear matter characterised by non-spherical clustered structures, is expected to occur in a narrow spatial region at the bottom of the inner crust of neutron stars, but the width of…

高能天体物理现象 · 物理学 2021-11-09 H. Dinh Thi , A. F. Fantina , F. Gulminelli

We present the first Bayesian inference of neutron star crust properties to incorporate neutron skin data, including the recent PREX measurement of the neutron skin of $^{208}$Pb, combined with recent chiral effective field theory…

核理论 · 物理学 2022-10-26 William G. Newton , Rebecca Preston , Lauren Balliet , Michael Ross

We investigate nuclear pasta phases appearing in hot neutron-star matter based on the compressible liquid-drop model, where the matter consists of a dense liquid phase and a dilute gas phase separated by a sharp interface. The surface…

核理论 · 物理学 2026-03-18 Jian Zhou , Junbo Pang , Hong Shen , Jinniu Hu

A compressible liquid-drop model (CLDM) is used to correlate uncertainties associated with the properties of the neutron star (NS) crust with theoretical estimates of the uncertainties associated with the equation of state (EOS) of…

核理论 · 物理学 2022-03-29 G. Grams , R. Somasundaram , J. Margueron , S. Reddy

Complex and exotic nuclear geometries are expected to appear naturally in dense nuclear matter found in the crust of neutron stars and supernovae environment collectively referred to as nuclear pasta. The pasta geometries depend on the…

核理论 · 物理学 2017-05-15 F. J. Fattoyev , C. J. Horowitz , B. Schuetrumpf

With the improved accuracy of neutron star observational data, it is necessary to derive new equation of state where the crust and the core are consistently calculated within a unified approach. For this purpose we describe non-uniform…

核理论 · 物理学 2022-04-20 Guilherme Grams , Jérôme Margueron , Rahul Somasundaram , Sanjay Reddy

Exotic non-spherical configurations of nuclei, known as ``pasta" phases, are expected to be present at the bottom of the inner crust of a neutron star. We study the properties of these configurations in catalyzed neutron stars within a…

高能天体物理现象 · 物理学 2022-06-17 H. Dinh Thi , A. F. Fantina , F. Gulminelli

Equilibrium phase diagrams for neutron star matter at subnuclear densities are obtained at zero temperature. Spherical, rod-like and slab-like nuclei as well as spherical and rod-like nuclear bubbles are taken into account by using a…

天体物理学 · 物理学 2009-10-31 Gentaro Watanabe , Kei Iida , Katsuhiko Sato

Few unified equations of state for neutron star matter where core and crust are described using the same nuclear model are available. However the use of non-unified equations of state with a simplified matching between the crust and the…

高能天体物理现象 · 物理学 2016-11-07 J. L. Zdunik , M. Fortin , P. Haensel

We investigate the structure of neutron star crusts, including the crust-core boundary, based on new Skyrme mean field models constrained by the bulk-matter equation of state from chiral effective field theory and the ground-state energies…

核理论 · 物理学 2017-07-05 Yeunhwan Lim , Jeremy W. Holt

The equation of state of the neutron-star outer crust is sensitive to nuclear mass predictions and provides a direct connection to properties of nuclei throughout the nuclide map, including those beyond experimental reach. We quantify the…

核理论 · 物理学 2026-05-12 P. S. Koliogiannis , N. Paar

We study the properties of pasta structures and their influence on the neutron star observables employing the effective relativistic mean-field (E-RMF) model. The compressible liquid drop model is used to incorporate the finite size…

核理论 · 物理学 2022-08-01 Vishal Parmar , H. C. Das , Ankit Kumar , Ankit Kumar , M. K. Sharma , P. Arumugam , S. K. Patra

The structure and composition of the inner crust of neutron stars, as well as global stellar properties such as radius and moment of inertia, have been shown to correlate with parameters characterizing the symmetry energy of nuclear matter…

太阳与恒星天体物理 · 物理学 2011-12-12 William G. Newton , Michael Gearheart , Josh Hooker , Bao-An Li

Observations of accreting neutron stars are widely used to constrain the microphysical properties of superdense matter. A key ingredient in this analysis is the heating associated with nuclear reactions in the outer layers of the neutron…

核理论 · 物理学 2024-06-11 Mikhail E. Gusakov , Andrey I. Chugunov

The transition density $\rho_{t}$ and pressure $P_{t}$ at the inner edge separating the liquid core from the solid crust of neutron stars are systematically studied using a modified Gogny (MDI) and 47 popular Skyrme interactions within well…

太阳与恒星天体物理 · 物理学 2010-01-15 Jun Xu , Lie-Wen Chen , Bao-An Li , Hong-Ru Ma

The nuclear symmetry energy plays an important role in the description of the properties of finite nuclei as well as neutron stars. Especially, for low values of baryon density, the accurate description of the crust-core interface strongly…

核理论 · 物理学 2021-08-20 Ch. Margaritis , P. S. Koliogiannis , A. Kanakis-Pegios , Ch. C. Moustakidis

We present an ensemble of unified neutron star crust and core equations of state, constructed using an extended Skyrme energy density functional through the crust and outer core, and appended by two piecewise polytropes at higher densities.…

A fully self-consistent model of the neutron star inner crust based upon models of the nucleonic equation of state at zero temperature is constructed. The results nearly match those of previous calculations of the inner crust given the same…

核理论 · 物理学 2008-11-26 Andrew W. Steiner
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