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相关论文: Neutron star crust in Voigt approximation II: gene…

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Neutron star matter spans a wide range of densities, from that of nuclei at the surface to exceeding several times normal nuclear matter density in the core. While terrestrial experiments, such as nuclear or heavy-ion collision experiments,…

高能天体物理现象 · 物理学 2023-12-19 Suprovo Ghosh , Debarati Chatterjee , Jürgen Schaffner-Bielich

In the inner crust of a neutron star, at densities above the ``drip'' threshold, unbound ``conduction'' neutrons can move freely past through the ionic lattice formed by the nuclei. The relative current density $n^i= n \bar v^i$ of such…

核理论 · 物理学 2009-11-10 Brandon Carter , Nicolas Chamel , Pawel Haensel

Atom-in-jellium calculations of the Einstein frequency in condensed matter and of the equation of state were used to predict the variation of shear modulus from zero pressure to ~$10^7$ g/cm$^3$, for several elements relevant to white dwarf…

Using a Thomas-Fermi model, we calculate the structure of the electrosphere of the quark antimatter nuggets postulated to comprise much of the dark matter. This provides a single self-consistent density profile from ultrarelativistic…

星系天体物理 · 物理学 2014-11-20 Michael McNeil Forbes , Kyle Lawson , Ariel R. Zhitnitsky

The boundary between the solid crust, assumed to be in complete thermodynamic equilibrium (cold catalyzed matter), and the liquid core of a neutron star is studied using Skyrme SLy effective N-N interactions. An approximate value of the…

天体物理学 · 物理学 2009-10-31 F. Douchin , P. Haensel

The crust of a neutron star is known to melt at a temperature that increases with increasing matter density, up to about $10^{10}$ K. At such high temperatures and beyond, the crustal ions are put into collective motion and the associated…

高能天体物理现象 · 物理学 2023-09-06 H. Dinh Thi , A. F. Fantina , F. Gulminelli

We present 31.5 micron imaging photometry of 11 nearby Seyfert galaxies observed from the Stratospheric Observatory For Infrared Astronomy (SOFIA) using the Faint Object infraRed CAmera for the SOFIA Telescope (FORCAST). We tentatively…

A new table of the nuclear equation of state (EOS) based on realistic nuclear potentials is constructed for core-collapse supernova numerical simulations. Adopting the EOS of uniform nuclear matter constructed by two of the present authors…

核理论 · 物理学 2017-03-23 H. Togashi , K. Nakazato , Y. Takehara , S. Yamamuro , H. Suzuki , M. Takano

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 derive the empirical formulas for the neutron star mass and gravitational redshift as a function of the central density and specific combination of the nuclear saturation parameters, which are applicable to the stellar models constructed…

核理论 · 物理学 2022-03-23 Hajime Sotani , Hajime Togashi

Transitions of nuclear compositions in the crust of a neutron star induced by stellar spin-down are evaluated at zero temperature. We construct a compressible liquid-drop model for the energy of nuclei immersed in a neutron gas, including…

天体物理学 · 物理学 2016-08-30 Kei Iida , Katsuhiko Sato

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

Crystallization of dense matter in neutron star crusts and white dwarf cores may be similar to epitaxial crystal growth in terrestrial laboratories. However in stellar crystals, the spacing between horizontal planes has to gradually…

太阳与恒星天体物理 · 物理学 2024-03-19 D. A. Baiko

The thermal conductivity of a dense {\it multi-component} plasma is critical to the modeling of accreting neutron stars. To this end, we perform large-scale molecular dynamics simulations to calculate the static structure factor of the…

高能天体物理现象 · 物理学 2009-09-28 J. Daligault , S. Gupta

Highly precise weak lensing shear measurement is required for statistical weak gravitational lensing analysis such as cosmic shear measurement to achieve severe constraint on the cosmological parameters. For this purpose, the accurate shape…

宇宙学与河外天体物理 · 物理学 2018-07-18 Yuki Okura , Toshifumi Futamase

Background: Nuclear pasta, emerging due to the competition between the long-range Coulomb force and the short-range strong force, is believed to be present in astrophysical scenarios, such as neutron stars and core-collapse supernovae. Its…

核理论 · 物理学 2019-11-06 B. Schuetrumpf , G. Martínez-Pinedo , Md Afibuzzaman , H. M. Aktulga

Using the Wentzel-Kramers-Brillouin method, we derive a modified form of the Thomas-Fermi approximation to electron density. This new result enables us to calculate the details of the self-consistent ion cores, as well as the ionization…

材料科学 · 物理学 2009-02-23 Gregory C. Dente , Michael L. Tilton

Neutron stars exhibit magnetic fields and densities far beyond those achievable in terrestrial laboratories, offering a natural probe of strongly interacting matter under extreme conditions. Using observationally anchored mass-radius…

宇宙学与河外天体物理 · 物理学 2026-01-13 Abriana Lyda , Prajwal MohanMurthy

To relate constraints from nuclear physics to the tidal deformabilities of neutron stars, we construct a neutron star model that accepts input from a large collection of Skyrme density functions to calculate properties of 1.4 solar-mass…

核实验 · 物理学 2018-11-13 M. B. Tsang , C. Y. Tsang , P. Danielewicz , W. G. Lynch , F. J. Fattoyev

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
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