Strange quark matter and quark stars with the Dyson-Schwinger quark model

Abstract

We calculate the equation of state of strange quark matter and the interior structure of strange quark stars in a Dyson-Schwinger quark model within rainbow or Ball-Chiu vertex approximation. We emphasize constraints on the parameter space of the model due to stability conditions of ordinary nuclear matter. Respecting these constraints, we find that the maximum mass of strange quark stars is about 1.9 solar masses, and typical radii are 9 --11 km. We obtain an energy release as large as $3.6\times 10^{53}\text{erg}$ from conversion of neutron stars into strange quark stars.

9 pages, 9 figures

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Cited by in corpus (19)

• Third family of compact stars within a nonlocal chiral quark model equation of state
• Merger of two neutron stars: predictions from the two-families scenario
• Neutron star universal relations with microscopic equations of state
• Simultaneous chiral symmetry restoration and deconfinement - Consequences for the QCD phase diagram
• Interacting $ud$ and $uds$ quark matter at finite densities and quark stars
• Electrically charged strange stars with an interacting quark matter equation of state
• Revisiting the Equation of State of Hybrid Stars in the Dyson-Schwinger Equation Approach to QCD
• Muon bundles as a sign of strangelets from the Universe
• Cooling of hybrid neutron stars with microscopic equations of state
• Rotating hybrid stars with the Dyson-Schwinger quark model
• Evaluation of pion-nucleon sigma term in Dyson-Schwinger equation approach of QCD
• QCD phase diagram and critical exponents within the nonextensive Polyakov-Nambu-Jona-Lasinio model
• Deconfinement of non-strange hadronic matter with nucleons and $\Delta$ baryons to quark matter in neutron stars
• Hadron-quark phase transition in neutron star by combining the relativistic Brueckner-Hartree-Fock theory and Dyson-Schwinger equation approach
• Nonextensive effects on QCD chiral phase diagram and baryon-number fluctuations within Polyakov-Nambu-Jona-Lasinio model
• QCD phase transition and equation of state of stellar strong interaction matter via Dyson-Schwinger equation approach
• Constraining the Hadron-Quark Phase Transition Chemical Potential via Astronomical Observation
• Two-flavor hybrid stars with the Dyson-Schwinger quark model
• Influence of light quark loops on the Wigner phase with Dyson-Schwinger equations approach