Hadron-quark Pasta Phase in Massive Neutron Stars
arXiv:2111.08909 · doi:10.3847/1538-4357/ac30dd
Abstract
The structured hadron-quark mixed phase, known as the pasta phase, is expected to appear in the core of massive neutron stars. Motivated by the recent advances in astrophysical observations, we explore the possibility of the appearance of quarks inside neutron stars and check its compatibility with current constraints. We investigate the properties of the hadron-quark pasta phases and their influences on the equation of state (EOS) for neutron stars. In this work, we extend the energy minimization (EM) method to describe the hadron-quark pasta phase, where the surface and Coulomb contributions are included in the minimization procedure. By allowing different electron densities in the hadronic and quark matter phases, the total electron chemical potential with the electric potential remains constant, and local ? equilibrium is achieved inside the Wigner-Seitz cell. The mixed phase described in the EM method shows the features lying between the Gibbs and Maxwell constructions, which is helpful for understanding the transition from the Gibbs construction (GC) to the Maxwell construction (MC) with increasing surface tension. We employ the relativistic mean-field model to describe the hadronic matter, while the quark matter is described by the MIT bag model with vector interactions. It is found that the vector interactions among quarks can significantly stiffen the EOS at high densities and help enhance the maximum mass of neutron stars. Other parameters like the bag constant can also affect the deconfinement phase transition in neutron stars. Our results show that hadron-quark pasta phases may appear in the core of massive neutron stars that can be compatible with current observational constraints.
References in corpus (53)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Shapiro delay measurement of a two solar mass neutron star
- A Massive Pulsar in a Compact Relativistic Binary
- GW170817: Measurements of Neutron Star Radii and Equation of State
- GW190814: Gravitational Waves from the Coalescence of a 23 M Black Hole with a 2.6 M Compact Object
- 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
- GW190425: Observation of a Compact Binary Coalescence with Total Mass
- Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
- A New Parameterization for the Lagrangian Density of Relativistic Mean Field Theory
- A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
- Equations of state for supernovae and compact stars
- Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620
- From hadrons to quarks in neutron stars: a review
- Evidence for quark-matter cores in massive neutron stars
- The NANOGrav Nine-year Data Set: Mass and Geometric Measurements of Binary Millisecond Pulsars
- The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars
- The Equation of State of Hot, Dense Matter and Neutron Stars
- Relativistic effective interaction for nuclei, giant resonances, and neutron stars
- Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
- Quark phases in neutron stars and a "third family" of compact stars as a signature for phase transitions
- GW190814: Impact of a 2.6 solar mass neutron star on nucleonic equations of state
- A lower bound on the maximum mass if the secondary in GW190814 was once a rapidly spinning neutron star
- Hadron-quark mixed phase in hyperon stars
- GW190814 as a massive rapidly-rotating neutron star with exotic degrees of freedom
- Neutron Star Equation of State in light of GW190814
- Vector interaction enhanced bag model for astrophysical applications
- Finite-size effects at the hadron-quark transition and heavy hybrid stars
- On the nature of GW190814 and its impact on the understanding of supranuclear matter
- GW190814's secondary component with mass M as a super-fast pulsar
- Strong correlations of neutron star radii with the slopes of nuclear matter incompressibility and symmetry energy at saturation
- Effects of symmetry energy on equation of state for simulations of core-collapse supernovae and neutron-star mergers
- GW190814: Spin and equation of state of a neutron star companion
- Treating quarks within neutron stars
- The possibility of the secondary object in GW190814 as a neutron star
- Influence of the hadronic equation of state on the hadron-quark phase transition in neutron stars
- Hybrid equation of state with pasta phases and third family of compact stars
- Charge screening effect in the hadron-quark mixed phase
- Deconfinement Phase Transition in Compact Stars : Maxwell vs. Gibbs Construction of the Mixed Phase
- Discriminating between Neutron Stars and Black Holes with Imperfect Knowledge of the Maximum Neutron Star Mass
- Effects of the symmetry energy on properties of neutron star crusts near the neutron drip density
- Constraining strangeness in dense matter with GW170817
- Modified MIT bag Models -- part I: Thermodynamic consistency, stability windows and symmetry group
- Rapidly rotating -resonance-admixed hypernuclear compact stars
- Hadron-quark mixed phase in neutron stars
- Finite-size effects on the hadron-quark phase transition in neutron stars
- Rapidly Spinning Compact Stars with Deconfinement Phase Transition
- Nuclear symmetry energy and hadron-quark mixed phase in neutron stars
- Effects of nuclear symmetry energy and equation of state on neutron star properties
- Isospin- and momentum-dependent effective interactions for the baryon octet and the properties of hybrid stars
- Hadron-quark mixed phase in the quark-meson coupling model
- The Radius of PSR J0740+6620 from NICER and XMM-Newton Data
- Neutrino emissivity in the quark-hadron mixed phase of neutron stars