Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-08-14
Phys.Rev. C68 (2003) 035804
Physics
Nuclear Physics
Nuclear Theory
RevTeX,14 figures, accepted to publication in Physical Review C
Scientific paper
10.1103/PhysRevC.68.035804
We investigate the properties of mixed stars formed by hadronic and quark matter in $\beta$-equilibrium described by appropriate equations of state (EOS) in the framework of relativistic mean-field theory. We use the non- linear Walecka model for the hadron matter and the MIT Bag and the Nambu-Jona-Lasinio models for the quark matter. The phase transition to a deconfined quark phase is investigated. In particular, we study the dependence of the onset of a mixed phase and a pure quark phase on the hyperon couplings, quark model and properties of the hadronic model. We calculate the strangeness fraction with baryonic density for the different EOS. With the NJL model the strangeness content in the mixed phase decreases. The calculations were performed for T=0 and for finite temperatures in order to describe neutron and proto-neutron stars. The star properties are discussed. Both the Bag model and the NJL model predict a mixed phase in the interior of the star. Maximum allowed masses for proto-neutron stars are larger for the NJL model ($\sim 1.9$ M$_{\bigodot}$) than for the Bag model ($\sim 1.6$ M$_{\bigodot}$).
Menezes Débora P.
Providencia Constança
No associations
LandOfFree
Warm stellar matter with deconfinement: application to compact stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Warm stellar matter with deconfinement: application to compact stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Warm stellar matter with deconfinement: application to compact stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-82685