Investigating the Impact of Higher-Order Phase Transitions in Binary Neutron-Star Mergers
arXiv:2508.10698 · doi:10.1103/71t3-3t28
Abstract
In this paper we investigate quark deconfinement in neutrons stars and their mergers, focusing on the effects of higher orders for the phase transition between hadronic and quark matter. The different descriptions we use to describe matter microscopically contain varying particle degrees of freedom, including nucleons, hyperons, Delta baryons, and light and strange quarks. We use tabulated equations of state from the CompOSE database in which the quark deconfinement phase transition is described as being first-order, and then smooth it out by introducing a percolation, replacing the single first-order phase transition with two transitions of second or third order. We then perform binary neutron-star merger simulations using these new equations of st ate, focusing on groups of binaries with the same single-star mass, radius, and tidal deformability, but different equations of state. We go on to discuss differences in their evolution, and the ramifications for interpreting future gravitational wave observations and the potential to learn about dense matter.
References in corpus (74)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- A Massive Pulsar in a Compact Relativistic Binary
- Multi-messenger Observations of a Binary Neutron Star Merger
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- 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
- Tidal Love numbers of neutron stars
- Constraining neutron star tidal Love numbers with gravitational wave detectors
- Constraining the Maximum Mass of Neutron Stars From Multi-Messenger Observations of GW170817
- The Athena++ Adaptive Mesh Refinement Framework: Design and Magnetohydrodynamic Solvers
- GW170817: Joint Constraint on the Neutron Star Equation of State from Multimessenger Observations
- Neutron-star radius constraints from GW170817 and future detections
- Model Waveform Accuracy Standards for Gravitational Wave Data Analysis
- Sound velocity bound and neutron stars
- Binary Neutron Star Mergers: Dependence on the Nuclear Equation of State
- A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$\unicode{x2013}$4715
- Search for post-merger gravitational waves from the remnant of the binary neutron star merger GW170817
- Testing Approximations of Thermal Effects in Neutron Star Merger Simulations
- An updated mass-radius analysis of the 2017-2018 NICER data set of PSR J0030+0451
- On the Sound Speed in Neutron Stars
- Relativistic model for nuclear matter and atomic nuclei with momentum-dependent self-energies
- Compact stars with sequential QCD phase transitions
- The Radius of the High-mass Pulsar PSR J0740+6620 with 3.6 yr of NICER Data
- Phenomenological QCD equation of state for massive neutron stars
- Strongly interacting matter exhibits deconfined behavior in massive neutron stars
- Trace anomaly as signature of conformality in neutron stars
- Ab-initio QCD calculations impact the inference of the neutron-star-matter equation of state
- Advanced LIGO detector performance in the fourth observing run
- Reaching percolation and conformal limits in neutron stars
- Studying strong phase transitions in neutron stars with gravitational waves
- Theoretical and Experimental Constraints for the Equation of State of Dense and Hot Matter
- A NICER View of PSR J12311411: A Complex Case
- Merger and post-merger of binary neutron stars with a quark-hadron crossover equation of state
- Finite-temperature extension for cold neutron star equations of state
- Gravitational Wave Signal for Quark Matter with Realistic Phase Transition
- Delta baryons and diquark formation in the cores of neutron stars
- Numerical relativity simulations of prompt collapse mergers: threshold mass and phenomenological constraints on neutron star properties after GW170817
- Plausible presence of new state in neutron stars with masses above
- Emergence of microphysical bulk viscosity in binary neutron star post-merger dynamics
- Hybrid equation of state approach in binary neutron-star merger simulations
- Updated observing scenarios and multi-messenger implications for the International Gravitational-wave Network's O4 and O5
- A NICER view of the 1.4 solar-mass edge-on pulsar PSR J0614-3329
- Probing the incompressibility of nuclear matter at ultra-high density through the prompt collapse of asymmetric neutron star binaries
- Thermal Effects in Binary Neutron Star Mergers
- Constraints on the maximum densities of neutron stars from postmerger gravitational waves with third-generation observations
- The application of the Quark-Hadron Chiral Parity-Doublet Model to neutron star matter
- The role of strangeness in hybrid stars and possible observables
- EoS for hot neutron stars
- Probing neutron-star matter in the lab: similarities and differences between binary mergers and heavy-ion collisions
- Implicit correlations within phenomenological parametric models of the neutron star equation of state
- Binary neutron star mergers as a probe of quark-hadron crossover equations of state
- Effects of -meson on properties of hyperon stars in density dependent relativistic mean field model
- Structure in the speed of sound: from neutron stars to heavy-ion collisions
- Reconciling multi-messenger constraints with chiral symmetry restoration
- Detectability of QCD phase transitions in binary neutron star mergers: Bayesian inference with the next generation gravitational wave detectors
- Delta baryons in neutron stars
- The Hadron-Quark Crossover in Neutron Star within Gaussian Process Regression Method
- Testing general relativity with compact coalescing binaries: comparing exact and predictive methods to compute the Bayes factor
- Hybrid star phenomenology from the properties of the special point
- Neutron star properties with careful parameterization in the (axial)vector meson extended linear sigma model
- Hybrid Equations of State for Neutron Stars with Hyperons and Deltas
- Properties of quark matter and hybrid stars from a quasiparticle model
- Interface modes in inspiralling neutron stars: A gravitational-wave probe of first-order phase transitions
- Variation of delta baryon mass and hybrid star properties in static and rotating conditions
- Sound velocity peak induced by the chiral partner in dense two-color QCD
- Effects of Onset of Phase Transition on Binary Neutron Star Mergers
- On the Role of Muons in Binary Neutron Star Mergers: First Simulations
- Revealing Phase Transition in Dense Matter with Gravitational Wave Spectroscopy of Binary Neutron Star Mergers
- Tripling Fluctuations and Peaked Sound Speed in Fermionic Matter
- The impact of hyperons on neutron star mergers: gravitational waves, mass ejection and black hole formation
- Quark condensate and chiral symmetry restoration in neutron stars
- Neutron-quark stars: Discerning viable alternatives for the higher-density part of the equation of state of compact stars
- Hybrid stars and QCD phase transition with a NJL-like model
- Direct nonparametric multimessenger constraints on the equation of state of cold dense nuclear matter