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The model dependence and the symmetry energy dependence of the core-crust transition properties for the neutron stars are studied using three different families of systematically varied extended relativistic mean field model. Several forces…

核理论 · 物理学 2015-06-23 A. Sulaksono , Naosad Alam , B. K. Agrawal

Neutron stars cooling after sustained accretion outbursts provide unique information about the neutron star crust and underlying dense matter. Comparisons between astronomical observations of these cooling transients and model calculations…

高能天体物理现象 · 物理学 2019-09-11 Sudhanva Lalit , Zach Meisel , Edward F. Brown

The transition density $n_t$ and pressure $P_t$ at the inner edge between the liquid core and the solid crust of a neutron star are analyzed using the thermodynamical method and the framework of relativistic nuclear energy density…

核理论 · 物理学 2014-11-20 Ch. C. Moustakidis , T. Niksic , G. A. Lalazissis , D. Vretenar , P. Ring

As rotating neutron stars slow down, the pressure and the density in the core region increase due to the decreasing centrifugal forces and phase transitions may occur in the center. We extract the analytic behavior near the critical angular…

天体物理学 · 物理学 2008-11-26 H. Heiselberg , M. Hjorth-Jensen

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

Using the equation of state of asymmetric nuclear matter that has been recently constrained by the isospin diffusion data from intermediate-energy heavy ion collisions, we have studied the transition density and pressure at the inner edge…

核理论 · 物理学 2009-12-01 Lie-Wen Chen , Bao-An Li , Hong-Ru Ma , Jun Xu

The possibility to draw links between the isospin properties of nuclei and the structure of compact stars is a stimulating perspective. In order to pursue this objective on a sound basis, the correlations from which such links can be…

The properties of the core-crust transition in neutron stars are investigated using effective nuclear forces of finite-range. Special attention is paid to the so-called dynamical method for locating the transition point, which, apart from…

核理论 · 物理学 2019-07-31 C. Gonzalez-Boquera , M. Centelles , X. Viñas , T. R. Routray

We systematically study the symmetry energy effects of the transition density $n_{\rm t}$ and the transition pressure $P_{\rm t}$ around the crust-core interface of a neutron star in the framework of the dynamical and the thermodynamical…

核理论 · 物理学 2019-01-23 L. Tsaloukidis , Ch. Margaritis , Ch. C. Moustakidis

It has been shown recently that taking into account strong, weak, electromagnetic, and gravitational interactions, and fulfilling the global charge neutrality of the system, a transition layer will happen between the core and crust of…

太阳与恒星天体物理 · 物理学 2014-03-20 Jorge A. Rueda , Remo Ruffini , Yuan-Bin Wu , She-Sheng Xue

The back-bending phenomenon for compact stars is studied by means of analytical equations of state, for both constant-pressure phase transitions and the transitions through the mixed-phase region. We restrict ourselves to the case of normal…

天体物理学 · 物理学 2007-05-23 J. L. Zdunik , M. Bejger , P. Haensel , E. Gourgoulhon

Phase transitions can play an important role in the cosmological constant problem, allowing the underlying vacuum energy, and therefore the value of the cosmological constant, to change. Deep within the core of neutron stars, the local…

广义相对论与量子宇宙学 · 物理学 2025-02-03 Giulia Ventagli , Pedro G. S. Fernandes , Andrea Maselli , Antonio Padilla , Thomas P. Sotiriou

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

The crustal fraction of moment of inertia in neutron stars is calculated using $\beta$-equilibrated nuclear matter obtained from density dependent M3Y effective interaction. The transition density, pressure and proton fraction at the inner…

核理论 · 物理学 2017-02-21 Debasis Atta , Somnath Mukhopadhyay , D. N. Basu

The slope of the nuclear symmetry energy at saturation density $L$ is pointed out as a crucial quantity to determine the mass and width of neutron-star crusts. This letter clarifies the relation between $L$ and the core-crust transition. We…

核理论 · 物理学 2010-09-08 Camille Ducoin , Jérôme Margueron , Constança Providencia

Using the momentum-dependent MDI effective interaction for nucleons, we have studied the transition density and pressure at the boundary between the inner crust and liquid core of hot neutron stars. We find that their values are larger in…

核理论 · 物理学 2010-05-25 Jun Xu , Lie-Wen Chen , Che Ming Ko , 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

In this work, we investigate the influence of the phase transition and a stiffer fluid in neutron stars' cores on the static equilibrium configuration, dynamical stability, and tidal deformability. For this aim, it is taken into account…

高能天体物理现象 · 物理学 2023-03-29 José D. V. Arbañil , Lucas S. Rodrigues , César H. Lenzi

In this letter we study the dynamics of a first order phase transition from nucleonic to quark matter in neutron stars. Using standard equations of state for these two phases we find the density range where such a transition is possible.…

高能天体物理现象 · 物理学 2015-05-27 Igor Mishustin , Ritam Mallick , Rana Nandi , Leonid Satarov

The stability of the $\beta$-equilibrated dense nuclear matter is analyzed with respect to the thermodynamic stability conditions. Based on the density dependent M3Y effective nucleon-nucleon interaction, the effects of the nuclear…

核理论 · 物理学 2014-09-05 Debasis Atta , D. N. Basu
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