Role of the symmetry energy and the neutron-matter stiffness on the tidal deformability of a neutron star with unified equations of state

Abstract

The role of the symmetry energy and the neutron-matter stiffness on the tidal deformability of a cold nonaccreted neutron star is studied using a set of unified equations of state. Based on the nuclear energy-density functional theory, these equations of state provide a thermodynamically consistent treatment of all regions of the star and were calculated using functionals that were precision fitted to experimental and theoretical nuclear data. Predictions are compared to constraints inferred from the recent detection of the gravitational-wave signal GW170817 from a binary neutron-star merger and from observations of the electromagnetic counterparts.

26 pages, 8 figures

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• Improved Treatment of Dark Matter Capture in Neutron Stars II: Leptonic Targets
• Constraining hadron-quark phase transition parameters within the quark-mean-field model using multimessenger observations of neutron stars
• Role of the crust on the tidal deformability of a neutron star within a unified treatment of dense matter
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• Gapless superfluidity in neutron stars: Normal-fluid fraction
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• Gapless superfluidity in neutron stars: Thermal properties
• Direct nonparametric multimessenger constraints on the equation of state of cold dense nuclear matter
• Superfluid neutron matter with a twist
• Onset of Electron Captures and Shallow Heating in Magnetars
• Neutron Star Radii from Laboratory Experiments
• Simulating Binary Neutron Star Mergers with Finite-temperature Equations of State: The influences of the slope of the symmetry energy and artificial heating
• Inner crust equations of state for CompOSE
• Probing the equation of state of neutron stars with captured primordial black holes
• The origin of the elements and other implications of gravitational wave detection for nuclear physics
• Neutron stars can shine a light on elusive lepton-flavor-violating dark matter
• Torsional oscillations of magnetized neutron stars: Impacts of Landau-Rabi quantization of electron motion
• Unified Equation of State for Neutron Stars Based on the Gogny Interaction
• Tracing the Trace Anomaly of Dense Matter inside Neutron Stars