论文标题
中子星的意大利面特性在有效的相对论平均模型中
Pasta properties of the neutron star within effective relativistic mean-field model
论文作者
论文摘要
我们研究了意大利面结构的特性及其对使用有效的相对论平均场（E-RMF）模型的中子星观测值的影响。考虑到内皮中非球形结构的可能性，可压缩的液态滴模型用于结合有限尺寸效应。为多种E-RMF参数构建了统一的状态方程，以研究中子恒星外壳中的意大利面质量和厚度等各种特性。大多数意大利面特性对散热密度区域中的对称能敏感。使用Monte Carlo模拟的结果，我们估算了来自软伽马射雷亚式中继器的准碘振荡的情况下地壳的剪切模量，并计算了内皮中基本扭转模式的频率。中性恒星的全球特性，例如质量 - 拉迪乌斯剖面，惯性时刻，地壳质量，地壳厚度和惯性的分数。结果与各种观察和理论约束一致。
We study the properties of pasta structures and their influence on the neutron star observables employing the effective relativistic mean-field (E-RMF) model. The compressible liquid drop model is used to incorporate the finite size effects, considering the possibility of nonspherical structures in the inner crust. The unified equation of states are constructed for several E-RMF parameters to study various properties such as pasta mass and thickness in the neutron star's crust. The majority of the pasta properties are sensitive to the symmetry energy in the subsaturation density region. Using the results from Monte Carlo simulations, we estimate the shear modulus of the crust in the context of quasiperiodic oscillations from soft gamma-ray repeaters and calculate the frequency of fundamental torsional oscillation mode in the inner crust. Global properties of the neutron star such as mass-radius profile, the moment of inertia, crustal mass, crustal thickness, and fractional crustal moment of inertia are worked out. The results are consistent with various observational and theoretical constraints.
