Neutron star matter in the quark-meson coupling model in strong magnetic fields

Abstract

The effects of strong magnetic fields on neutron star matter are investigated in the quark-meson coupling (QMC) model. The QMC model describes a nuclear many-body system as nonoverlapping MIT bags in which quarks interact through self-consistent exchange of scalar and vector mesons in the mean-field approximation. The results of the QMC model are compared with those obtained in a relativistic mean-field (RMF) model. It is found that quantitative differences exist between the QMC and RMF models, while qualitative trends of the magnetic field effects on the equation of state and composition of neutron star matter are very similar.

arXiv comment16 pages, 4 figures

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• Hadron-quark mixed phase in the quark-meson coupling model
• Extended quark mean-field model for neutron stars
• Magnetization of neutron star matter
• Properties of hyperonic matter in strong magnetic fields
• Quark-meson coupling model for antikaon condensation in neutron star matter with strong magnetic fields
• Investigation of the field-induced ferromagnetic phase transition in spin polarized neutron matter: a lowest order constrained variational approach
• Dense nuclear matter and symmetry energy in strong magnetic fields
• Magnetic moments of the octet, decuplet, low-lying charm, and low-lying bottom baryons in a nuclear medium
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• Saturation properties of nuclear matter in the presence of strong magnetic field
• The effects of strong magnetic fields on the neutron star structure: lowest order constrained variational calculations
• Impact of strong magnetic fields on the inner crust of neutron stars
• $\delta$ meson effects on neutron stars in the modified quark-meson coupling model