A constrained Gaussian-process bridge prior generates model-agnostic, nonparametric, thermodynamically consistent priors for neutron-star equation-of-state inference.
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A Massive Pulsar in a Compact Relativistic Binary
18 Pith papers cite this work, alongside 3,849 external citations. Polarity classification is still indexing.
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SKAO timing of a handful of binary pulsars can reach unprecedented sensitivity to microhertz gravitational waves from inspiralling massive black hole binaries via resonant perturbations.
A semi-supervised VAE trained on Skyrme EOS data reconstructs equations of state with mean absolute percentage errors under 0.14% using two supervised observables (M_max, R_1.4) and one variational latent variable.
Efficient mass transfer in binaries naturally limits the mass of the first-born black hole and produces a sharp drop above 45 solar masses that mimics the pair-instability gap.
Simulations with a tunable phase-transition parameter in neutron-star equations of state produce unique post-merger gravitational-wave peaks and link Δp to the prompt-collapse mass threshold, with Δp ≲ 0.04 implied for GW170817.
Simpson-Visser regularization of Schwarzschild-AdS black holes yields a van der Waals-type temperature branch structure with three coexisting equilibria and topological charge W=+1 for regularization parameter below 1/sqrt(24), distinguishing it from the Schwarzschild-AdS case.
Multi-messenger observations of neutron stars imply L=42.6–52 MeV (piecewise polytrope) or 44.2–56.7 MeV (speed-of-sound) at 68% credibility, and show pQCD constraints barely change the posterior EOS.
Free neutrons survive r-process freeze-out in fast ejecta of neutron star mergers and their beta-decay heating produces a visible early kilonova precursor for mass fractions above ~0.05.
Quarkyonic stars produce ω-mode frequencies that follow approximate universal relations independent of the equation of state.
Hierarchical Bayesian analysis of ~50 binary pulsars finds moderate evidence for mass-spin anti-correlation (ρ = -0.26) in the recycled population, plus a small mass offset by white-dwarf companion type and confirmation of companion-mass–eccentricity correlation in DNS systems.
The single Λ hyperon quasiparticle in nuclear matter at saturation density has energy -29.55 MeV at zero momentum, residue 0.98, and effective mass ratio 0.747.
Simulations of the BSD instrument for POLAR-2 show it can localize faint GRBs like GRB 170817A to about 1.5 degrees accuracy, meeting requirements for supporting GRB polarimetry.
A controlled two-parameter deformation in linear f(Q) gravity with gravitational decoupling enlarges the stellar mass window for compact objects while satisfying causality and regularity.
Neutron star observations, especially the heaviest known pulsar masses and GW170817 tidal deformability, provide the strongest restrictions on the allowed cold dense matter equation of state.
The (axial-)vector meson extended linear sigma model yields an equation of state for quark matter that satisfies astrophysical constraints on compact star masses and radii.
A double-polytropic EOS family is identified that satisfies multimessenger constraints with M_max around 2.45 solar masses, R_1.4 of 11.3 km, and Lambda_1.4 between 485-512 while remaining causal.
Strong magnetic fields in compact stars induce Landau quantization and magnetic-moment couplings that change the equation of state and allow additional degrees of freedom such as hyperons, Delta resonances, and quark matter.
A review of parity-doublet models in effective field theory that accommodate a chirally invariant mass m0 to describe baryons across vacuum, nuclear, and astrophysical densities.
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Constrained Gaussian-process bridge prior for neutron-star equation-of-state inference
A constrained Gaussian-process bridge prior generates model-agnostic, nonparametric, thermodynamically consistent priors for neutron-star equation-of-state inference.
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Unveiling the Microhertz Gravitational-Wave Sky with the Square Kilometre Array Observatory
SKAO timing of a handful of binary pulsars can reach unprecedented sensitivity to microhertz gravitational waves from inspiralling massive black hole binaries via resonant perturbations.
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A Semi-Supervised Variational Autoencoder for Generating Neutron Star Equations of State
A semi-supervised VAE trained on Skyrme EOS data reconstructs equations of state with mean absolute percentage errors under 0.14% using two supervised observables (M_max, R_1.4) and one variational latent variable.
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Binary Evolution Can Mimic the Pair-Instability Mass Gap in Black Hole Mergers
Efficient mass transfer in binaries naturally limits the mass of the first-born black hole and produces a sharp drop above 45 solar masses that mimics the pair-instability gap.
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Distinct Signatures of the Nature of Phase Transition in Binary Neutron Star Mergers
Simulations with a tunable phase-transition parameter in neutron-star equations of state produce unique post-merger gravitational-wave peaks and link Δp to the prompt-collapse mass threshold, with Δp ≲ 0.04 implied for GW170817.
-
Holographic Thermodynamic Signatures of Simpson--Visser--AdS Black Holes
Simpson-Visser regularization of Schwarzschild-AdS black holes yields a van der Waals-type temperature branch structure with three coexisting equilibria and topological charge W=+1 for regularization parameter below 1/sqrt(24), distinguishing it from the Schwarzschild-AdS case.
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Astrophysics equation of state inference with Bayesian chiral effective field theory uncertainties
Multi-messenger observations of neutron stars imply L=42.6–52 MeV (piecewise polytrope) or 44.2–56.7 MeV (speed-of-sound) at 68% credibility, and show pQCD constraints barely change the posterior EOS.
-
Nucleosynthesis in the fast ejecta of a neutron star merger
Free neutrons survive r-process freeze-out in fast ejecta of neutron star mergers and their beta-decay heating produces a visible early kilonova precursor for mass fractions above ~0.05.
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Universality in spacetime $\omega$ modes of quarkyonic stars
Quarkyonic stars produce ω-mode frequencies that follow approximate universal relations independent of the equation of state.
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Neutron Star Mass across Binary Pulsar Subpopulations: Mass-Spin Correlation, Mass Distributions, and Moment of Inertia Effects
Hierarchical Bayesian analysis of ~50 binary pulsars finds moderate evidence for mass-spin anti-correlation (ρ = -0.26) in the recycled population, plus a small mass offset by white-dwarf companion type and confirmation of companion-mass–eccentricity correlation in DNS systems.
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Quasiparticle properties of a single $\Lambda$ impurity in symmetric nuclear matter with a regulated $N\Lambda$ interaction
The single Λ hyperon quasiparticle in nuclear matter at saturation density has energy -29.55 MeV at zero momentum, residue 0.98, and effective mass ratio 0.747.
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Design and preliminary performance study of the broad-band spectrometer detector for POLAR-2
Simulations of the BSD instrument for POLAR-2 show it can localize faint GRBs like GRB 170817A to about 1.5 degrees accuracy, meeting requirements for supporting GRB polarimetry.
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Two Parameter Deformation of Embedding Class-I Compact Stars in Linear $f(Q)$ Gravity
A controlled two-parameter deformation in linear f(Q) gravity with gravitational decoupling enlarges the stellar mass window for compact objects while satisfying causality and regularity.
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Astrophysical constraints on the cold equation of state of the strongly interacting matter
Neutron star observations, especially the heaviest known pulsar masses and GW170817 tidal deformability, provide the strongest restrictions on the allowed cold dense matter equation of state.
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Compact star properties from an extended linear sigma model
The (axial-)vector meson extended linear sigma model yields an equation of state for quark matter that satisfies astrophysical constraints on compact star masses and radii.
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An Analytical Toy Equation of State for Neutron Stars Consistent with Current Observations
A double-polytropic EOS family is identified that satisfies multimessenger constraints with M_max around 2.45 solar masses, R_1.4 of 11.3 km, and Lambda_1.4 between 485-512 while remaining causal.
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Dense Matter and Compact Stars in Strong Magnetic Fields
Strong magnetic fields in compact stars induce Landau quantization and magnetic-moment couplings that change the equation of state and allow additional degrees of freedom such as hyperons, Delta resonances, and quark matter.
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Chiral, parity-doublet, effective-Lagrangian mean-field theories for nuclear and astrophysical phenomenology
A review of parity-doublet models in effective field theory that accommodate a chirally invariant mass m0 to describe baryons across vacuum, nuclear, and astrophysical densities.