Quark matter equation of state and stellar properties

2012/10/31 by James R. Torres, J. R. Torres, Débora P. Menezes +1 · 2 citations
Mathematics · Physics and Astronomy · #Algorithm #Astrophysics #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Cosmology and Gravitation Theories #Equation of state #Mathematics #Particle physics #Physics #Pulsar #Pulsars and Gravitational Waves Research #Quark #Quark star #Stability (learning theory) #State (computer science) #Statistical physics #Stiffening #Strange matter #Theoretical physics #Thermodynamics #nucl-th

paper · pdf · doi:10.1209/0295-5075/101/42003

arxiv created 2012/12/23 · openalex publication_date 2013/02/01 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

In this paper we study strange matter by investigating the stability window within one version of the QMDD model which suffers a thermodynamic inconsistency at zero temperature and check that it can explain the very massive pulsar recently detected. We compare our results with the ones obtained within the MIT bag model and see that this version of the QMDD model can explain larger masses, due to the stiffening of the equation of state.

Citations

• On Massive Neutron Cores
• Relativistic mean-field approximation in a density dependent parametrization model at finite temperature
• A two-solar-mass neutron star measured using Shapiro delay
• Static Solutions of Einstein's Field Equations for Spheres of Fluid
• Cosmic separation of phases
• Consistent thermodynamic treatment for a quark-mass density-dependent model

Cited by

• Electrically charged strange stars with an interacting quark matter equation of state
• Density-dependent quark mass model revisited: thermodynamic consistency, stability windows and stellar properties