论文标题
GW190814超级质量中子星的扩展重力描述
Extended Gravity Description for the GW190814 Supermassive Neutron Star
论文作者
论文摘要
最近，通过重力波检测到紧凑的二元合并，已经发现了一个紧凑型物体，质量为$ 2.50÷2.67 \，m _ {\ odot} $。该物体的质量使其成为从未发现过的最重的中子恒星或有史以来最轻的黑洞。在这里，我们表明，具有该观察到的质量的中子恒星可以通过扩展的重力理论获得的质量 - 拉迪乌斯关系来始终如一地解释。此外，采用了与LIGO观察约束一致的状态方程。我们还考虑旋转的影响并表明，对于某些与LiGo数据兼容的状态方程，旋转中子星的质量可能超过$ 2.6 m_ \ odot $。
Very recently a compact object with a mass in the range $2.50÷2.67\, M_{\odot}$ has been discovered via gravitational waves detection of a compact binary coalescence. The mass of this object makes it among the heaviest neutron star never detected or the lightest black hole ever observed. Here we show that a neutron star with this observed mass, can be consistently explained with the mass-radius relation obtained by Extended Theories of Gravity. Furthermore, equations of state, consistent with LIGO observational constraints, are adopted. We consider also the influence of rotation and show that masses of rotating neutron stars can exceed $2.6 M_\odot$ for some equations of state compatible with LIGO data.
