constraints on thermal effects of the nuclear equation of state
arXiv:1904.00924 · doi:10.1103/PhysRevC.100.025805
Abstract
We exploit the many-body self-consistent Green's function method to analyze finite-temperature properties of infinite nuclear matter and to explore the behavior of the thermal index used to simulate thermal effects in equations of state for astrophysical applications. We show how the thermal index is both density and temperature dependent, unlike often considered, and we provide an error estimate based on our calculations. The inclusion of many-body forces is found to be critical for the density dependence of the thermal index. We also compare our results to a parametrization in terms of the density dependence of the nucleon effective mass. Our study questions the validity of predictions made for the gravitational-wave signal from neutron-star merger simulations with a constant thermal index.
11 pages, 7 figures, added references
References in corpus (27)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Chiral effective field theory and nuclear forces
- Improved nuclear matter calculations from chiral low-momentum interactions
- GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations
- Accurate nuclear radii and binding energies from a chiral interaction
- The Skyrme Interaction in finite nuclei and nuclear matter
- Neutron matter at next-to-next-to-next-to-leading order in chiral effective field theory
- Accurate evolutions of inspiralling neutron-star binaries: prompt and delayed collapse to black hole
- Three-body forces: From cold atoms to nuclei
- Binary Neutron Star Mergers: Dependence on the Nuclear Equation of State
- Relativistic neutron star merger simulations with non-zero temperature equations of state I. Variation of binary parameters and equation of state
- Testing Approximations of Thermal Effects in Neutron Star Merger Simulations
- Equation of State in Relativistic Magnetohydrodynamics: variable versus constant adiabatic index
- On r-process nucleosynthesis from matter ejected in binary neutron starmergers
- Thermodynamics conditions of matter in neutron star mergers
- Neutron matter from chiral two- and three-nucleon calculations up to NLO
- Simulating binary neutron stars: dynamics and gravitational waves
- A General-relativistic Determination of the Threshold Mass to Prompt Collapse in Binary Neutron Star Mergers
- Revisiting the lower bound on tidal deformability derived by AT 2017gfo
- Correlated density-dependent chiral forces for infinite matter calculations within the Green's function approach
- Hot neutron matter from a Self-Consistent Green's Functions approach
- Finite-temperature extension for cold neutron star equations of state
- Non-empirical pairing energy functional in nuclear matter and finite nuclei
- Pairing in neutron matter: New uncertainty estimates and three-body forces
- Neutron matter at finite temperature
- Thermodynamic properties of nuclear matter with three-body forces
- Non-perturbative Extraction of the Effective Mass in Neutron Matter
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- Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
- Chiral Effective Field Theory and the High-Density Nuclear Equation of State
- Three-Nucleon Forces: Implementation and Applications to Atomic Nuclei and Dense Matter
- Nuclear and neutron-star matter from local chiral interactions
- New equations of state constrained by nuclear physics, observations, and QCD calculations of high-density nuclear matter
- Equation of state effects in core-collapse supernovae
- Equation of state effects in the core collapse of a - star
- Nuclear equation of state for arbitrary proton fraction and temperature based on chiral effective field theory and a Gaussian process emulator
- Towards grounding nuclear physics in QCD
- Realistic Finite-Temperature Effects in Neutron Star Merger Simulations
- Coalescence of black hole--neutron star binaries
- Sub-radian-accuracy gravitational waves from coalescing binary neutron stars II: Systematic study on the equation of state, binary mass, and mass ratio
- Gravitational Wave Signal for Quark Matter with Realistic Phase Transition
- Unified weak/strong coupling framework for nuclear matter and neutron stars
- Equation of State and Progenitor Dependence of Stellar-Mass Black-Hole Formation
- Possible Causes of False General Relativity Violations in Gravitational Wave Observations
- Hybrid equation of state approach in binary neutron-star merger simulations
- Microscopic equation of state of hot nuclear matter for numerical relativity simulations
- Neutron matter at finite temperature based on chiral effective field theory interactions
- Ab initio nuclear thermodynamics
- Thermal Effects in Binary Neutron Star Mergers
- Dense and Hot QCD at Strong Coupling
- EoS for hot neutron stars
- Hot neutron stars with microscopic equations of state
- Nucleon effective mass in hot dense matter
- Warm dense matter and cooling of supernovae remnants
- Thermal Relaxation of Dark Matter Admixed Neutron Star
- Dense Matter in Neutron Stars with eXTP
- Hadron matter in neutron stars in view of gravitational wave observations
- Effect of Inner Crust EoS on Neutron star properties
- Setting nonperturbative uncertainties on finite-temperature properties of neutron matter
- Structure Factors for Hot Neutron Matter from Ab Initio Lattice Simulations with High-Fidelity Chiral Interactions
- Quarkyonic or baryquark matter? On the dynamical generation of momentum space shell structure
- Thermodynamics of Hot Neutron Stars and Universal Relations
- Effects of nuclear matter properties in neutron star mergers
- Lattice Effective Field Theory Simulations of Nuclei
- Second-Order Perturbation Theory in Continuum Quantum Monte Carlo Calculations
- Finite-temperature effects in dynamical-spacetime binary neutron star merger simulations: Validation of the parametric approach
- Equation of state of neutron star matter and its warm extension with an interacting hadron resonance gas
- Incompressibility and Symmetry Energy of Neutron Star
- Signature of hadron-quark crossover in binary-neutron-star mergers
- Thermal effects in hot and dilute homogeneous asymmetric nuclear matter
- Accurate nuclear symmetry energy at finite temperature within a BHF approach
- Polaronic Proton and Diproton Clustering in Neutron-Rich Matter
- Simulating neutron stars with a flexible enthalpy-based equation of state parametrization in SpECTRE
- Radius and equation of state constraints from massive neutron stars and GW190814
- Temperature effects on the neutron matter equation of state obtained from chiral effective field theory
- Thermal effects on nuclear matter properties
- Investigating the Impact of Higher-Order Phase Transitions in Binary Neutron-Star Mergers
- Finite-temperature infinite matter with effective-field-theory-inspired energy-density functionals
- Dependence of postmerger properties on the thermal heating efficiency in neutron star mergers
- Equation of State of Hot Neutron Star Matter using Finite Range Simple Effective Interaction
- Thermal impacts on the properties of nuclear matter and young neutron star
- Neutron star crust and outer core equation of state from chiral effective field theory with quantified uncertainties
- The thermal index of neutron-star matter in the virial approximation
- Systematic study for the surface properties of neutron star
- Structure of Anisotropic Magnetized Neutron Stars in f(R,T) Gravity with Realistic Equation of State