Nuclear "pasta" structures in low-density nuclear matter and neutron star crust

Abstract

In neutron star crust, non-uniform structure of nuclear matter is expected, which is called the "pasta" structure. From the recent studies of giant flares in magnetars, these structures might be related to some observables and physical quantities of the neutron star crust. To investigate the above quantities, we numerically explore the pasta structures with a fully threedimensional geometry and study the properties of low-density nuclear matter, based on the relativistic mean-field model and the Thomas-Fermi approximation. We observe typical pasta structures for fixed proton number-fraction and two of them for cold catalyzed matter. We also discuss the crystalline configuration of "pasta".

10 pages, 10 figures

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Cited by in corpus (46)

• Unified equation of state for neutron stars on a microscopic basis
• Phases of dense matter in compact stars
• Twist-averaged boundary conditions for nuclear pasta Hartree-Fock calculations
• The Vlasov formalism for extended relativistic mean field models: the crust-core transition and the stellar matter equation of state
• Effects of symmetry energy on equation of state for simulations of core-collapse supernovae and neutron-star mergers
• A Minimal Nuclear Energy Density Functional
• Neutron star crusts from mean field models constrained by chiral effective field theory
• Landau-Peierls instability in a Fulde-Ferrell type inhomogeneous chiral condensed phase
• Effects of the symmetry energy on properties of neutron star crusts near the neutron drip density
• Light clusters, pasta phases and phase transitions in core-collapse supernova matter
• A Neutron Star is born
• Low density phases in a uniformly charged liquid
• Impact of the neutron-star deformability on equation of state parameters
• Effects of nuclear symmetry energy and equation of state on neutron star properties
• Effect of topological defects on "nuclear pasta" observables
• Nuclear Pasta Matter for Different Proton Fractions
• Electron transport through nuclear pasta in magnetized neutron stars
• A Survey of Nuclear Pasta in the Intermediate Density Regime I: Shapes and Energies
• Domains and defects in nuclear "pasta"
• Dense Matter in Neutron Stars with eXTP
• Self-consistent band calculation of slab phase in neutron-star crust
• Pasta properties of the neutron star within effective relativistic mean-field model
• Nuclear pasta structures and symmetry energy
• Unified nuclear matter EOSs constrained by the in-medium balance in density-dependent covariant density functionals
• Exact periodic stripes for a minimizers of a local/non-local interaction functional in general dimension
• Unified equations of state for cold non-accreting neutron stars with Brussels-Montreal functionals. IV. Role of the symmetry energy in pasta phases
• Periodic striped ground states in Ising models with competing interactions
• A Survey of Nuclear Pasta in the Intermediate Density Regime: Structure Functions for Neutrino Scattering
• Pasta fluctuations in symmetric matter at finite temperature
• Structure formation during phase transitions in strongly interacting matter
• Application of superconducting-superfluid magnetohydrodynamics to nuclear "pasta" in neutron stars
• Nuclear pasta and symmetry energy in the relativistic point-coupling model
• Finite size effects in Neutron Star and Nuclear matter simulations
• Elastic properties of nuclear pasta in a fully three-dimensional geometry
• Nuclear pasta in hot and dense matter and its influence on the equation of state for astrophysical simulations
• Impact of strong magnetic fields on the inner crust of neutron stars
• Neutrino diffusion in the pasta phase matter within the Thomas-Fermi approach
• Pasta phases in neutron stars under strong magnetic fields
• Nuclear pasta structures at high temperatures
• Effects of inner crusts on $g$-mode oscillations in neutron stars
• Do short range correlations inhibit the appearance of the nuclear pasta?
• Hybrid stars can be self-bound
• Inner crust equations of state for CompOSE
• Pressure and chemical potentials in the inner crust of a cold neutron star within Hartree-Fock and extended Thomas-Fermi methods
• Fermi operator expansion method for nuclei and inhomogeneous matter with nuclear energy density functional
• Fermi Operator Expansion for the Hartree-Fock-Bogoliubov Theory