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arXiv 2109.01159astro-ph.HEgr-qc
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高阶多极子与二元Love数的普遍关系

High-Order Multipole and Binary Love Number Universal Relations

Daniel A. Godzieba, David Radice

备注：
14 pages, 6 figures, 3 tables Replacement of older version of manuscript. A few small errors were found in the previous version of the manuscript that do not affect the scientific findings of the paper. They are corrected in this version
发表信息：
Universe 2021, 7, 368
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摘要：

使用一个数据集的约200万个唯象状态方程与观测约束一致，我们构建了新的状态方程不敏感的普遍关系，存在于多极潮汐变形参数的中子星，$Λ_l$，几个高阶多极（$l = 5,6,7,8$）。我们确认存在一个普遍的关系半径的$1.4 M_\odot$ NS，$R_{1.4}$和约化潮汐参数的二进制，$\tildeΛ$，和啁啾质量。我们将这种关系扩展到大量的啁啾质量和不同质量$M$，$R_M$的孤立NS的半径。我们发现对于每个$\mathcal{M}$都存在一个最优的$M$值，使得当使用该关系时，估计$R_M$的不确定性最小.我们讨论了即将到来的LIGO O4运行和第三代探测器的效用和这些关系的影响。

英文摘要：

Using a data set of approximately 2 million phenomenological equations of state consistent with observational constraints, we construct new equation-of-state-insensitive universal relations that exist between the multipolar tidal deformability parameters of neutron stars, $Λ_l$, for several high-order multipoles ($l = 5,6,7,8$). We confirm the existence of a universal relation between the radius of the $1.4 M_\odot$ NS, $R_{1.4}$ and the reduced tidal parameter of the binary, $\tildeΛ$, and the chirp mass. We extend this relation to a large number of chirp masses and to the radii of isolated NSs of different mass $M$, $R_M$. We find that there is an optimal value of $M$ for every $\mathcal{M}$ such that the uncertainty in the estimate of $R_M$ is minimized when using the relation. We discuss the utility and implications of these relations for the upcoming LIGO O4 run and third-generation detectors.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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