Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-05-06
Mod.Phys.Lett.A22:623-630,2007
Astronomy and Astrophysics
Astrophysics
7 pages, 4 figures, "Non-Perturbative Quantum Field Theory: Lattice and Beyond", Guangzhou, China
Scientific paper
10.1142/S0217732307023213
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.
Chen Wei
Liu Lin-Gin
Zhang P. Q.
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