论文标题
核物理学,中子星质量和惯性测量的未来时刻的状态限制方程
Equation of state constraints from nuclear physics, neutron star masses, and future moment of inertia measurements
论文作者
论文摘要
我们探讨了基于微观计算,对中子恒星的核密度和观察结果,探讨了富含中子物质的状态(EOS)的约束。在先前的工作中,我们表明,基于手性有效场理论中的现代核相互作用的预测以及对二极质量中子恒星的观察导致中子恒星半径和EOS在广泛的密度范围内具有稳健的不确定性范围。在这项工作中,我们扩展了这项研究,均采用了Hebeler等人的分段多层扩展。除了Greif等人的声音模型的速度外,并表明中子星的惯性测量矩可以显着改善EOS和Neutron Star Radii的约束。
We explore constraints on the equation of state (EOS) of neutron-rich matter based on microscopic calculations up to nuclear densities and observations of neutron stars. In a previous work we showed that predictions based on modern nuclear interactions derived within chiral effective field theory and the observation of two-solar-mass neutron stars result in a robust uncertainty range for neutron star radii and the EOS over a wide range of densities. In this work we extend this study, employing both the piecewise polytrope extension from Hebeler et al. as well as the speed of sound model of Greif et al., and show that moment of inertia measurements of neutron stars can significantly improve the constraints on the EOS and neutron star radii.