Compact stars in a SU(3) Quark-Meson Model
arXiv:1506.01868 · doi:10.1103/PhysRevD.92.045022
Abstract
The recent observations of the massive pulsars PSR J1614-2230 and of PSR J0348+0432 with about two solar masses implies strong constraints on the properties of dense matter in the core of compact stars. Effective models of QCD aiming to describe neutron star matter can thereby be considerably constrained. In this context, a chiral quark-meson model based on a SU(3) linear -model with a vacuum pressure and vector meson exchange is discussed in this work. The impact of its various terms and parameters on the equation of state and the maximum mass of compact stars are delineated to check whether pure quark stars with two solar masses are feasible within this approach. Large vector meson coupling constant and a small vacuum pressure allow for maximum masses of two or more solar masses. However, pure quark stars made of absolutely stable strange quark matter, so called strange stars, turn out to be restricted to a quite small parameter range.
10 pages, 13 figures, matches published version in PRD
References in corpus (10)
- Shapiro delay measurement of a two solar mass neutron star
- A Massive Pulsar in a Compact Relativistic Binary
- The Phase Structure of the Polyakov--Quark-Meson Model
- Quark matter in compact stars?
- A new quark-hadron hybrid equation of state for astrophysics - I. High-mass twin compact stars
- Modern compact star observations and the quark matter equation of state
- Improved Polyakov-loop potential for effective models from functional calculations
- Stability of CFL cores in Hybrid Stars
- Hybrid neutron stars with the Dyson-Schwinger quark model and various quark-gluon vertices
- Supernova Equation of State with an extended SU(3) Quark-Meson Model
Cited by in corpus (40)
- Equations of state for supernovae and compact stars
- Constraining twin stars with GW170817
- What can we learn from global spin alignment of meson in heavy-ion collisions?
- Quark matter may not be strange
- Relativistic parameterizations of neutron matter and implications for neutron stars
- Signals in the tidal deformability for phase transitions in compact stars with constraints from GW170817
- Quark stars admixed with dark matter
- Warming Nuclear Pasta with Dark Matter: Kinetic and Annihilation Heating of Neutron Star Crusts
- Spin alignment of vector mesons in heavy-ion collisions
- Quark-Meson-Coupling (QMC) model for finite nuclei, nuclear matter and beyond
- Twin stars and the stiffness of the nuclear equation of state: ruling out strong phase transitions below with the new NICER radius measurements
- Hybrid and quark star matter based on a non-perturbative equation of state
- Classifications of Twin Star Solutions for a Constant Speed of Sound Parameterized Equation of State
- Nonperturbative quark matter equations of state with vector interactions
- The scenario of two families of compact stars 1. Equations of state, mass-radius relations and binary systems
- Twin Stars within the SU(3) Chiral Quark-Meson Model
- The scenario of two families of compact stars 2. Transition from hadronic to quark matter and explosive phenomena
- Quantum nucleation of up-down quark matter and astrophysical implications
- Phase diagram and nucleation in the Polyakov-loop-extended Quark-Meson truncation of QCD with the unquenched Polyakov-loop potential
- Hadron matter in neutron stars in view of gravitational wave observations
- Electrically charged strange stars with an interacting quark matter equation of state
- Strange quark matter and quark stars with the Dyson-Schwinger quark model
- Camouflage of the Phase Transition to Quark Matter in Neutron Stars
- Model of hybrid star with baryonic and strange quark matter in Tolman-Kuchowicz spacetime
- Neutron star properties with careful parameterization in the (axial)vector meson extended linear sigma model
- Revisiting the Equation of State of Hybrid Stars in the Dyson-Schwinger Equation Approach to QCD
- Implications of the fermion vacuum term in the extended SU(3) Quark Meson model on compact stars properties
- Functional renormalization group study of the critical region of the quark-meson model with vector interactions
- Effects of Renormalizing the chiral SU(2) Quark-Meson-Model
- Studying VLOCV twin compact stars with binary mergers
- Rotating hybrid stars with the Dyson-Schwinger quark model
- Towards generating a new supernova equation of state: A systematic analysis of cold hybrid stars
- Role of the conserved charges in the chiral symmetry restoration phase transition
- Hadron-quark phase transition in neutron star by combining the relativistic Brueckner-Hartree-Fock theory and Dyson-Schwinger equation approach
- New insight on the quark condensate beyond chiral limit
- Conditions for the existence of stable strange quark matter
- Arguing on entropic and enthalpic first-order phase transitions in strongly interacting matter
- Compact star properties from an extended linear sigma model
- Two-flavor hybrid stars with the Dyson-Schwinger quark model
- Improved quark coalescence model for spin alignments of vector mesons