Hybrid Stars

Physics – Nuclear Physics

Scientific paper

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Binary And Multiple Stars, Elementary Particle Processes, Nuclear Matter, Thermodynamic Processes, Conduction, Convection, Equations Of State

Scientific paper

In the present paper we calculate the properties of hybrid stars, namely, its gravitational, baryonic masses and central energy densities by solving the Tolman-Volkoff-Oppenheimer equations, which were derived from Einstein's equations for compact stellar objects. In oder to obtain these properties, an adequate equation of state (EOS) is necessary. Hybrid stars are formed when a phase transition to a deconfined phase is thermodinamically possible. In this work we have used the non-linear Walecka model for the hadron matter and the MIT Bag (unpaired quark phase) and the Nambu-Jona-Lasinio (NJL) models for the quark matter in order to build the appropriate equations of state for the mixed phase constituted by hadrons and quarks in β-equilibrium.

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