Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2012-01-16
Reseach in Astronomy and Astrophysics 12 (2012) 540
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
18 pages, 1 table, 7 figures
Scientific paper
We have discussed dynamical behavior of strange quark matter components, in particular the effects of density dependent quark mass on the equation of state of strange quark matter. Dynamical masses of quarks have been computed within Nambu-Jona-Lasinio (NJL) model, then we have done the strange quark matter calculations employing the MIT bag model with these dynamical masses. For the sake of comparing dynamical mass interaction with QCD quark-quark interaction, we have considered the one-gluon-exchange term as the effective interaction between quarks for MIT bag model. Our dynamical approach illustrates an improvement for the obtained values of equation of state. We have also investigated the structure of strange quark star using Tolman-Oppenheimer-Volkoff (TOV) equations for all applied models. Our results show that the dynamical mass interaction leads to lower values for the gravitational mass.
Bordbar Gholam Hossein
Ziaei B.
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