English
Related papers

Related papers: Crust-core interface and bulk neutron star propert…

200 papers

We study the simultaneous effects of the symmetry energy and temperature on the crust-core transition of a magnetar. The dynamical and the thermodynamical spinodals are used to calculate the transition region within a relativistic…

High Energy Astrophysical Phenomena · Physics 2017-06-20 Jianjun Fang , Helena Pais , Sagar Pratapsi , Contança Providência

We study the properties of neutron-star crust within a Bayesian framework based on a unified relativistic mean-field (RMF) description of dense matter. The analysis focuses on the posterior distributions of crust properties, constrained by…

Nuclear Theory · Physics 2026-01-13 Vishal Parmar , Ignazio Bombaci

The influence of the uncertainties of the equation of state empirical parameters on the neutron stars crust-core phase transition is explored within a meta-modeling approach, in which the energy per particle is expanded as a Taylor series…

Nuclear Theory · Physics 2019-09-04 Sofija Antic , Debarati Chatterjee , Thomas Carreau , Francesca Gulminelli

The parabolic approximation to the equation of state of the isospin asymmetric nuclear matter (ANM) is widely used in the literature to make predictions for the nuclear structure and the neutron star properties. Based on the realistic…

Nuclear Theory · Physics 2014-03-04 W. M. Seif , D. N. Basu

The composition and equation of state of the outer crust of non-accreting neutron stars is computed using accurate nuclear mass tables. The main goal of the present study is to understand the impact of the symmetry energy on the structure…

Nuclear Theory · Physics 2008-11-26 X. Roca-Maza , J. Piekarewicz

We study the effects of the symmetry energy on the neutron drip density and properties of nuclei in neutron star crusts. The nonuniform matter around the neutron drip point is calculated by using the Thomas--Fermi approximation with the…

Nuclear Theory · Physics 2015-06-23 S. S. Bao , J. N. Hu , Z. W. Zhang , H. Shen

The poorly known crustal equation of state plays a critical role in many observational phenomena associated with a neutron star. Using semi-classical Monte Carlo simulations, we explore the possible configurations of the inner edge of the…

Nuclear Theory · Physics 2025-09-11 R. Shafieepour , H. R. Moshfegh , J. Piekarewicz

We examine how the properties of inhomogeneous nuclear matter at subnuclear densities depend on the density dependence of the symmetry energy. Using a macroscopic nuclear model we calculate the size and shape of nuclei in neutron star…

Nuclear Theory · Physics 2008-11-26 Kazuhiro Oyamatsu , Kei Iida

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…

Nuclear Theory · Physics 2017-02-21 Debasis Atta , Somnath Mukhopadhyay , D. N. Basu

The symmetry energy and its density dependence are crucial inputs for many nuclear physics and astrophysics applications, as they determine properties ranging from the neutron-skin thickness of nuclei to the crust thickness and the radius…

Nuclear Theory · Physics 2021-11-05 Reed Essick , Ingo Tews , Philippe Landry , Achim Schwenk

We study the diversities in the properties of the neutron stars arising due to the different choices for the cross-coupling between various mesons which governs the density dependence of the nuclear symmetry energy in the extended…

Nuclear Theory · Physics 2018-07-25 N. Alam , A. Sulaksono , B. K. Agrawal

Background: The nuclear symmetry energy $E_{sym}(\rho)$ encodes information about the energy necessary to make nuclear systems more neutron-rich. While its slope parameter L at the saturation density $\rho_0$ of nuclear matter has been…

Nuclear Theory · Physics 2020-10-20 Bao-An Li , Macon Magno

We investigate the nuclear symmetry energy and neutron star properties using a Bayesian analysis based on constraints from different chiral effective field theory calculations using new energy density functionals that allow for large…

Nuclear Theory · Physics 2024-03-12 Yeunhwan Lim , Achim Schwenk

The behaviour of the nuclear symmetry energy near saturation density is important for our understanding of dense nuclear matter. This density dependence can be parameterised by the nuclear symmetry energy and its derivatives evaluated at…

High Energy Astrophysical Phenomena · Physics 2021-04-07 Duncan Neill , William G. Newton , David Tsang

The nuclear symmetry energy is intimately connected with nuclear astrophysics. This contribution focuses on the estimation of the symmetry energy from experiment and how it is related to the structure of neutron stars. The most important…

Nuclear Theory · Physics 2014-03-06 James M. Lattimer , Andrew W. Steiner

We review and extend with nonrelativistic nuclear mean field calculations a previous study of the impact of the nuclear symmetry energy on the structure and composition of the outer crust of nonaccreting neutron stars. First, we develop a…

Nuclear Theory · Physics 2011-09-16 X. Roca-Maza , J. Piekarewicz , T. Garcia-Galvez , M. Centelles

We explore the effects of the density dependence of symmetry energy on the dynamical instabilities and crust-core phase transition in the cold and warm neutron stars in the RMF theory with point-coupling interactions using the Vlasov…

Nuclear Theory · Physics 2020-12-15 Yanjun Chen , Juan Zou , Zipeng Cheng , Binguang He

The symmetry energy and its density dependence are pivotal for many nuclear physics and astrophysics applications, as they determine properties ranging from the neutron-skin thickness of nuclei to the crust thickness and the radius of…

Nuclear Theory · Physics 2021-12-16 Reed Essick , Philippe Landry , Achim Schwenk , Ingo Tews

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…

Nuclear Theory · Physics 2017-05-15 F. J. Fattoyev , C. J. Horowitz , B. Schuetrumpf

Dense matter as it can be found in core-collapse supernovae and neutron stars is expected to exhibit different phase transitions which impact the matter composition and equation of state, with important consequences on the dynamics of…

Nuclear Theory · Physics 2015-06-11 F. Gulminelli , Ad. R. Raduta , J. Margueron , P. Papakonstantinou , M. Oertel