Modeling Hybrid Stars with an SU(3) non-linear sigma model
arXiv:1006.0380 · doi:10.1103/PhysRevC.82.035803
Abstract
We study the behavior of hybrid stars using an extended hadronic and quark SU(3) non-linear sigma model. The degrees of freedom change naturally, in this model, from hadrons to quarks as the density/temperature increases. At zero temperature, we reproduce massive neutron stars containing a core of hybrid matter of 2 km for the non-rotating case and 1.18 km and 0.87 km, in the equatorial and polar directions respectively, for stars rotating at the Kepler frequency (physical cases lie in between). The cooling of such stars is also analyzed.
Revised version, references and figures added. Accepted for publication in Physical Review C
References in corpus (7)
- The ATNF Pulsar Catalogue
- Neutron Star Observations: Prognosis for Equation of State Constraints
- Cold Quark Matter
- Proto-Neutron and Neutron Stars in a Chiral SU(3) Model
- An Eccentric Binary Millisecond Pulsar in the Galactic Plane
- Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics
- A Massive Neutron Star in the Globular Cluster M5
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