强磁场中的混合星
Hybrid Stars in a Strong Magnetic Field
摘要：
利用扩展的强子和夸克SU（3）非线性实现的西格玛模型，研究了强磁场对混合星粒子布居和状态方程的影响.在这个模型中，随着密度和/或温度的增加，从强子到夸克的自由度自然变化。高磁场和异常磁矩的影响在恒星的宏观性质中是可见的，如质量，绝热指数，转动惯量和冷却曲线。此外，在磁场变得足够高以改变这些性质的同时，它们使恒星具有各向异性。
英文摘要：
We study the effects of high magnetic fields on the particle population and equation of state of hybrid stars using an extended hadronic and quark SU(3) non-linear realization of the sigma model. In this model the degrees of freedom change naturally from hadrons to quarks as the density and/or temperature increases. The effects of high magnetic fields and anomalous magnetic moment are visible in the macroscopic properties of the star, such as mass, adiabatic index, moment of inertia, and cooling curves. Moreover, at the same time that the magnetic fields become high enough to modify those properties, they make the star anisotropic.
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