Modeling Hybrid Stars with an SU(3) non-linear sigma model
Jun, 2010Citations per year
Abstract: (arXiv)
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.Note:
- Revised version, references and figures added. Accepted for publication in Physical Review C
- 11.30.Rd
- 26.60.Dd
- 97.60.Jd
- 21.65.Qr
- star: hybrid
- sigma model: nonlinear
- matter: hybrid
- temperature: 0
- SU(3)
- neutron star
References(16)
Figures(22)