The Influence of the Magnetic Field on the Properties of Neutron Star Matter

Abstract

In the mean field approximation of the relativistic $\sigma$-$\omega$-$\rho$ model, the magnetic fields are incorporated, and its influence on the properties of n-p-e neutron star matter are studied. When the strength of the magnetic field is weaker than $\sim 10^{18}$G, the particle fractions and chemical potentials, matter energy density and pressure hardly change with the magnetic field; when the strength of the magnetic field is stronger than $\sim 10^{20}$G, the above quantities change with the magnetic field evidently. Furthermore, the pressure is studied in both thermodynamics and hydrodynamics. The difference between these two ways exits in the high density region, that is, the thermal self-consistency may not be satisfied in this region if the magnetic field is considered.

arXiv comment7 pages, 4 figures, "Non-Perturbative Quantum Field Theory: Lattice and Beyond", Guangzhou, China

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• (In-)Significance of the Anomalous Magnetic Moment of Charged Fermions for the Equation of State of a Magnetized and Dense Medium
• Hypernuclear matter in strong magnetic field
• Deformation of a magnetized neutron star
• Magnetism in Dense Quark Matter
• Equation of state of strongly magnetized matter with hyperons and $\Delta$-resonances
• Investigation of the field-induced ferromagnetic phase transition in spin polarized neutron matter: a lowest order constrained variational approach
• Phase transitions in neutron star and magnetars and their connection with high energetic bursts in astrophysics
• Possibility of conversion of neutron star to quark star in presence of high magnetic field
• Strongly interacting matter in extreme magnetic fields
• Effects of anisotropy on strongly magnetized neutron and strange quark stars in general relativity