Connecting neutron star observations to the high density equation of state of quasi-particle model

Abstract

The observation of $1.97\pm 0.04$ solar-mass neutron-like star gives constraint on the equation of state (EOS) of cold, condensed matter. In this paper, the EOS for both pure quark star and hybrid star with a quark core described by quasi-particle model are considered. The parameters of quasi-particle model which affect the mass of both quark star and hybrid star can be constrained by the observation.

7 pages, 11 figures

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Cited by in corpus (20)

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• Constraints on the hybrid equation of state with a crossover hadron-quark phase transition in the light of GW170817
• Do the current astronomical observations exclude the existence of non-strange quark stars?
• Non-strange quark stars from NJL model with proper-time regularisation
• Studies of the structure of massive hybrid stars within a modified NJL model
• Critical behaviors near the (tri-)critical end point of QCD within the NJL model
• Studies of two-solar-mass hybrid stars within the framework of Dyson-Schwinger equations
• Strange quark stars within proper time regularized (2+1)-flavor NJL model
• Studies of the hybrid star structure within 2+1 flavors NJL model
• A thermodynamically consistent quasi-particle model without density-dependent infinity of the vacuum zero point energy
• Model of hybrid star with baryonic and strange quark matter in Tolman-Kuchowicz spacetime
• 2+1 flavors QCD equation of state at zero temperature within Dyson-Schwinger equations
• Modeling and Analyzing Stability of Hybrid Stars within $f(Q)$ Gravity
• The study of nonstrange quark stars within a modified NJL model
• New algorithm to study the pseudo-Wigner solution of the quark gap equation in the framework of the (2+1)-flavor NJL model
• QCD equation of state and the structure of neutron stars in NJL model
• A model study of the chiral phase diagram of QCD
• Study of hybrid stars with nonstrange quark matter cores
• Pion superfluid phase transition at finite isospin chemical potential