Recent astrophysical observations reproduced by a short-range correlated van der Waals-type model?

Abstract

We perform an improvement in a van der Waals-type model by including it effects of short-range correlations (SRC). Attractive and repulsive parts of the nucleon-nucleon interaction are assumed to be density-dependent functions, more specifically, we adopt the Carnahan-Starling (CS) method for the latter, and a suitable expression for the former in order to reproduce the structure of the Clausius (C) real gas model. The parametrizations of the resulting model, named as CCS-SRC model, are shown to be capable of reproducing the flow constraint at the high-density regime of symmetric nuclear matter for incompressibility values inside the range of $K_0=(240\pm 20)$ MeV. In the context of stellar matter, our findings point out a good agreement of the CCS-SRC model with recent astrophysical observational data, namely, mass-radius contours and dimensionless tidal deformability regions and values, coming from gravitational waves data related to the GW170817 and GW190425 events, and from the NASA's Neutron star Interior Composition Explorer (NICER) mission. Furthermore, the values for the symmetry energy slope of the model ($L_0$) are in agreement with a recent range found for this quantity, claimed to be consistent with results reported by the updated lead radius experiment (PREX-2) collaboration. In this case, higher values of $L_0$ are favored, while the opposite scenario does not allow simultaneous compatibility between the model and the astrophysical data.

arXiv comment9 pages, 11 figures

References in corpus (60)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• A Massive Pulsar in a Compact Relativistic Binary
• GW170817: Measurements of Neutron Star Radii and Equation of State
• PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
• A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
• GW190425: Observation of a Compact Binary Coalescence with Total Mass $\sim 3.4M_{\odot }$
• A New Parameterization for the Lagrangian Density of Relativistic Mean Field Theory
• Determination of the Equation of State of Dense Matter
• Tidal Love numbers of neutron stars
• Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
• LIGO: The Laser Interferometer Gravitational-Wave Observatory
• A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
• Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620
• Relativistic theory of tidal Love numbers
• Accurate Determination of the Neutron Skin Thickness of ${}^{208}$Pb through Parity-Violation in Electron Scattering
• Implications of PREX-II on the equation of state of neutron-rich matter
• Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
• Probing Cold Dense Nuclear Matter
• Tidal Love Numbers of Neutron and Self-Bound Quark Stars
• Nucleon-Nucleon Correlations, Short-lived Excitations, and the Quarks Within
• How well do we know the neutron-matter equation of state at the densities inside neutron stars? A Bayesian approach with correlated uncertainties
• Momentum sharing in imbalanced Fermi systems
• Precision Determination of the Neutral Weak Form Factor of ${}^{48}$Ca
• Effective One Body description of tidal effects in inspiralling compact binaries
• Ab initio predictions link the neutron skin of ${}^{208}$Pb to nuclear forces
• The Compression-Mode Giant Resonances and Nuclear Incompressibility
• Nuclear constraints on properties of neutron star crusts
• Progress in Constraining Nuclear Symmetry Energy Using Neutron Star Observables Since GW170817
• Incompressibility in finite nuclei and nuclear matter
• Modified Structure of Protons and Neutrons in Correlated Pairs
• Information content of the parity-violating asymmetry in ${}^{208}$Pb
• Constraints on Nuclear Symmetry Energy Parameters
• Locating the inner edge of neutron star crust using terrestrial nuclear laboratory data
• Probing the core of the strong nuclear interaction
• The Equation of State for the Nucleonic and Hyperonic Core of Neutron Stars
• Van der Waals Equation of State with Fermi Statistics for Nuclear Matter
• Consistent relativistic mean field models constrained by GW170817
• Symmetry energy of cold nucleonic matter within a relativistic mean field model encapsulating effects of high momentum nucleons induced by short-range correlations
• Multicomponent van der Waals equation of state: Applications in nuclear and hadronic physics
• Particle Number Fluctuations for van der Waals Equation of State
• Hadron Resonance Gas Model with Induced Surface Tension
• Equations of state for real gases on the nuclear scale
• Dark matter effects on tidal deformabilities and moment of inertia in a hadronic model with short-range correlations
• A Neutron Star is born
• The isospin quartic term in the kinetic energy of neutron-rich nucleonic matter
• Imprints of high-momentum nucleons in nuclei on hard photons from heavy-ion collisions around the Fermi Energy
• Short-range correlations effects on the deformability of neutron stars
• Dark matter component in hadronic models with short-range correlations
• Study of the core-crust transition in neutron stars with finite-range interactions: the dynamical method
• The Van-der-Waals Gas EOS for the Lorentz Contracted Spheres
• Consistent Skyrme parametrizations constrained by GW170817
• CREX- and PREX-II-motivated relativistic interactions and their implications for the bulk properties of nuclear matter and neutron stars
• Measurement of Nuclear Transparency Ratios for Protons and Neutrons
• Correlations between bulk parameters in relativistic and nonrelativistic hadronic mean-field models
• Density-dependent van der Waals model under the GW170817 constraint
• Modeling baryonic interactions with the Clausius-type equation of state
• Hard-core Radius of Nucleons within the Induced Surface Tension Approach
• Nucleon Effective E-Mass in Neutron-Rich Matter from the Migdal-Luttinger Jump
• Constraints and correlations of nuclear matter parameters from a density-dependent van der Waals model
• Equation of State of Neutron-Rich Matter in $d$-Dimensions

Cited by in corpus (2)

• Nucleon Short-Range Correlations and High-Momentum Dynamics: Implications on the Equation of State of Dense Matter
• Neutron Star Equation of State with Nucleon Short-Range Correlations: A Concise Review and Open Issues