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相关论文: The Neutron Star Crust: Nuclear Physics Input

200 篇论文

The mean free path of neutrino in charged and neutral current reactions is calculated for inhomogeneous nuclear matter which is expected to appear in the crust of neutron stars. The relevant cross section depends on Fermi and Gamow-Teller…

核理论 · 物理学 2009-10-16 P. Grygorov , P. Gögelein , H. Müther

Precision mass spectrometry of neutron-rich nuclei is of great relevance for astrophysics. Masses of exotic nuclides impose constraints on models for the nuclear interaction and thus affect the description of the equation of state of…

核理论 · 物理学 2013-12-17 Susanne Kreim , Matthias Hempel , David Lunney , Jürgen Schaffner-Bielich

We study the effects of nuclear symmetry energy on the mass-radius relation and tidal deformability of neutron stars, considering the self-consistency of the equation of state (EOS). We first construct a set of unified EOSs based on…

核理论 · 物理学 2019-10-15 Fan Ji , Jinniu Hu , Shishao Bao , Hong Shen

A quasi-statistical equilibrium model is constructed to simulate the multicomponent composition of the crust of an accreting neutron star. The ashes of rp-process nucleosynthesis are driven by accretion through a series of electron…

核理论 · 物理学 2012-05-17 Andrew W. Steiner

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…

核理论 · 物理学 2012-02-27 A. W. Steiner , S. Gandolfi

The prediction of the equation of state of hot, dense nuclear matter is one of the most complicated and interesting problems in nuclear astrophysics. At the same time, knowledge of it is the basic ingredient for some of the most interesting…

高能天体物理现象 · 物理学 2021-05-12 P. S. Koliogiannis , Ch. C. Moustakidis

We construct a class of nuclear equations of state based on a schematic potential model, that originates from the work of Prakash et. al. \cite{Prakash-88}, which reproduce the results of most microscopic calculations. The equations of…

核理论 · 物理学 2008-11-26 V. P. Psonis , Ch. C. Moustakidis , S. E. Massen

Neutron stars are one of the most extreme objects in the universe, with densities that can exceed those of atomic nuclei and gravitational fields that are among the strongest known. Theoretical and observational research on neutron stars…

高能天体物理现象 · 物理学 2023-03-16 J. Alfredo Collazos

In the present study we investigate the static properties of nuclei in the inner crust of neutron stars. Using the Hartree-Fock method in coordinate space, together with the semiclassical approximation, we examine the patterns of phase…

核理论 · 物理学 2007-05-23 Piotr Magierski , Aurel Bulgac , Paul-Henri Heenen

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

Understanding the properties of the crust and the core as well as its interface is essential for accurate astrophysical modeling of phenomena such as glitches, X-ray bursts or oscillations in neutron stars. To study the crust-core…

核理论 · 物理学 2017-11-01 Debarati Chatterjee , Francesca Gulminelli

In the inner crust of a neutron star, due to the high density and pressure, nuclei which are still present, are immersed in a neutron superfluid. One then expects that the dynamical properties of nuclei are significantly affected. In order…

天体物理学 · 物理学 2008-11-26 Piotr Magierski , Aurel Bulgac

A very fast iterative method is presented to calculate the internal constitution of the outer crust of a cold nonaccreted neutron star, making use of very accurate analytical formulas for the transition pressures between adjacent crustal…

高能天体物理现象 · 物理学 2020-05-25 Nicolas Chamel

Significant progress has been made in recent years in constraining the density dependence of nuclear symmetry energy using terrestrial nuclear laboratory data. Around and below the nuclear matter saturation density, the experimental…

A neutron star in a long-lived, low-mass binary can easily accrete enough matter to replace its entire crust. Previous authors noted that an accreted crust, being formed from the burning of accreted hydrogen and helium, allows a series of…

天体物理学 · 物理学 2009-10-31 Edward F. Brown

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

The theory of the nuclear energy-density functional is used to provide a unified and thermodynamically consistent treatment of all regions of cold non-accreting neutron stars. In order to assess the impact of our lack of complete knowledge…

高能天体物理现象 · 物理学 2020-01-28 J. M. Pearson , N. Chamel , A. Y. Potekhin , A. F. Fantina , C. Ducoin , A. K. Dutta , S. Goriely

The oscillation spectrum of a neutron star is notably rich and intrinsically dependent on the equation of state of nuclear matter. With recent advancements in gravitational-wave and electromagnetic astronomy, we are nearing the capability…

广义相对论与量子宇宙学 · 物理学 2025-05-06 Fabian Gittins , Nils Andersson

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

High density behaviour of nuclear symmetry energy is studied on the basis of a stiffest density dependence of asymmetric contribution to energy per nucleon in charge neutral $n+p+e+\mu$ matter under beta equilibrium. The density dependence…

综合物理 · 物理学 2016-11-09 B Behera , T R Routray , S K Tripathy