Articulo
Equation of state for hybrid compact stars with a nonlocal chiral quark model
Registro en:
issn:0218-3013
issn:1793-6608
Autor
Grunfeld, Ana Gabriela
Berdermann, Jens
Blaschke, David
Klähn, Thomas
Gómez Dumm, Daniel Alberto
Scoccola, Norberto Nerio
Institución
Resumen
We study the thermodynamics of two flavor color superconducting (2SC) quark matter within a nonlocal chiral quark model, using both instantaneous and covariant nonlocal interactions. For applications to compact stars, we impose conditions of electric and color charge neutrality as well as β equilibrium and construct a phase transition to the hadronic matter phase described within the Dirac-Brueckner-Hartree-Fock (DBHF) approach. We obtain mass-radius relations for hybrid star configurations which fulfill modern observational constraints, including compact star masses above 2M⊙. Instituto de Física La Plata