The effect of the delta-rich hadronic stellar matter in the maximum neutron star mass using the nonlinear Walecka and Zimanyi-Moszkowski models
In this work, the delta-rich hadronic stellar matter condensate is studied in the context of a relativistic mean field calculation for hadrons and mesons using the nonlinear Walecka (NLW) and Zimanyi-Moszkowski (ZM) models. Considering different values of delta-mesons coupling constants we present t...
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| Veröffentlicht in: | Journal of physics. Conference series 2019-07, Vol.1291 (1), p.12038 |
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| creator | Oliveira, J C T Rodrigues, H Duarte, S B |
| description | In this work, the delta-rich hadronic stellar matter condensate is studied in the context of a relativistic mean field calculation for hadrons and mesons using the nonlinear Walecka (NLW) and Zimanyi-Moszkowski (ZM) models. Considering different values of delta-mesons coupling constants we present the delta matter effect in the equation of state in each of these models. Solving numerically the Tolman-Oppenheimer-Volkoff (TOV) equation, we obtain the maximum neutron star mass. We note that the NLW model provides a stiffer equation of state when compared to the ZM model for the same values of delta-mesons coupling constants, and as a consequence gives more massive neutron stars. |
| doi_str_mv | 10.1088/1742-6596/1291/1/012038 |
| format | Article |
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| subjects | Astronomical models Constants Coupling Equations of state Hadrons Mesons Neutron stars Neutrons Physics |
| title | The effect of the delta-rich hadronic stellar matter in the maximum neutron star mass using the nonlinear Walecka and Zimanyi-Moszkowski models |
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