REVIEW 5 cited by
Relativistic description of dense matter equation of state and compatibility with neutron star observables: a Bayesian approach
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
abstract
The general behavior of the nuclear equation of state (EOS), relevant for the description of neutron stars (NS), is studied within a Bayesian approach applied to a set of models based on a density dependent relativistic mean field description of nuclear matter. The EOS is subjected to a minimal number of constraints based on nuclear saturation properties and the low density pure neutron matter EOS obtained from a precise next-to-next-to-next-to-leading order (N$^{3}$LO) calculation in chiral effective field theory ($\chi$EFT). The posterior distributions of the model parameters obtained under these minimal constraints are employed to construct the distributions of various nuclear matter properties and NS properties such as radii, tidal deformabilites, central energy densities and speeds of sound etc. We found that 90% confidence interval (CI) for allowed NS mass - radius relationship and tidal deformabilites are compatible with GW170817 and recent NICER observations, without invoking the exotic degrees of freedom. A central speed-of-sound of the order of $\sqrt{2/3}$ $c$ is obtained. The maximum neutron star mass allowed by the model is 2.5 $M_\odot$.
Forward citations
Cited by 5 Pith papers
-
Exploring the limits of nucleonic metamodelling using different relativistic density functionals
Comparing two relativistic mean-field model families, the paper shows beta-equilibrium neutron star observations constrain the equation of state but not the proton fraction.
-
Bayesian constraints on covariant density functional equations of state of compact stars with new NICER mass-radius measurements
Bayesian fits that include the 2024 NICER results for PSR J0437 and J1231 narrow the allowed radius range for canonical-mass neutron stars to roughly 12.5 to 12.8 km in covariant density functional models.
-
Impact of the Scalar Isovector $\delta$-meson on the description of nuclear matter and neutron star properties
Including the delta meson in relativistic mean-field models widens the allowed symmetry energy slope and curvature, changing low-mass neutron star radii while leaving maximum mass nearly fixed.
-
Effects of dark matter and magnetic field on neutron star properties in relativistic mean-field theory: A single-fluid approach
Fermionic dark matter and strong central magnetic fields both reduce neutron-star maximum mass and radius and lower tidal deformability in single-fluid RMF models, remaining compatible with GW/NICER constraints over t...
-
CP violation in cold dense quark matter and axion effects on the non-radial oscillations of neutron stars
Using a 3-flavor NJL model with axions, the authors find that a CP-violating angle theta=pi reduces the chiral transition density and, with a vector repulsion, yields stable hybrid neutron stars with enhanced f-mode o...
Discussion (0). Continue with ORCID to comment.