Density dependent quark mass model revisited: Thermodynamic consistency, stability windows and stellar properties

Abstract

In this work a density dependent quark model is revisited, its thermodynamic consistency checked and the stability window for absolutely stable quark matter obtained. The hypotheses of both pure quark matter with equal quark chemical potentials and stellar matter subject to chemical stability and charge neutrality are investigated. The parameters that appear in the density dependent mass and satisfy the Bodmer-Witten conjecture are then used to compute the masses and radii of strange stars. We show that the obtained values are compatible with the recently observed massive stars.

arXiv comment9 pages, 12 figures

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• A Bayesian study of quark models in view of recent astrophysical constraints
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• Impact of the nuclear equation of state on the formation of twin stars
• Cold quark matter in a quasiparticle model: thermodynamic consistency and stellar properties
• Strange stars admixed with dark matter: equiparticle model in a two fluid approach
• Oscillating Magnetized Color Superconducting Quark Stars
• Non-Radial Oscillation Modes in Hybrid Stars with Hyperons and Delta Baryons
• Quark confinement in an equiparticle quark model: application to stellar matter
• Effects of Strong Magnetic Fields on the Hadron-Quark Deconfinement Transition