Neutron Stars with a Quark Core. II.Basic Integral and Structural parameters

Details Neutron Stars with a Quark Core. II.Basic Integral and Structural parameters Neutron Stars with a Quark Core. II.Basic Integral and Structural parameters

2004-11-04

arxiv.org/abs/astro-ph/0411103v1

Astrophysics 47 (2004) 52-64

Astronomy and Astrophysics

Astrophysics

13 pages, 4 figures

Scientific paper

10.1023/B:ASYS.0000017236.53514.

A broad sample of computed realistic equations of state of superdense matter with quark phase transition is used to construct a series of models neutron stars with a strange quark core. The integral characteristics of the stellar configurations are obtained: gravitational mass, rest mass, radius, relativistic moment of inertia, and red shift from the star's surface, as well as the mass and radius of the quark core within the allowable range of the central pressure. The parameters of some of the characteristic configurations of the calculated series are also given and these are studied in detail. It is found that a new additional region of stability for neutron stars with strange quark cores may exist for some models of the equation of state.

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