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arXiv 1702.04568gr-qcastro-ph.HE
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包含质量的致密星中普适I-Love-Q关系的完善

Completion of the universal I-Love-Q relations in compact stars including the mass

Borja Reina, Nicolas Sanchis-Gual, Raül Vera, José A. Font

摘要:

在最近的一篇论文中,我们应用了严格的扰动匹配框架,以显示修正的旋转恒星的质量在哈特尔的模型。在这里,我们应用这个框架的潮汐问题的二元系统。我们的方法充分考虑了获得普遍的$I$ -Love- $Q$关系所需的Love数的校正。我们计算了修正的质量与半径配置的旋转夸克星,重温经典论文的主题。这些修正使我们能够找到一个普遍的关系,涉及到质量$δM$的二阶贡献。因此,我们完成了二元系统潮汐问题的一组普适关系,涉及四个扰动参数,即$I$、Love、$Q$和$δM$。这些关系式可用于直接从观测资料中求取扰动参数。

英文摘要:

In a recent paper we applied a rigorous perturbed matching framework to show the amendment of the mass of rotating stars in Hartle's model. Here, we apply this framework to the tidal problem in binary systems. Our approach fully accounts for the correction to the Love numbers needed to obtain the universal $I$-Love-$Q$ relations. We compute the corrected mass vs radius configurations of rotating quark stars, revisiting a classical paper on the subject. These corrections allow us to find a universal relation involving the second-order contribution to the mass $δM$. We thus complete the set of universal relations for the tidal problem in binary systems, involving four perturbation parameters, namely $I$, Love, $Q$, and $δM$. These relations can be used to obtain the perturbation parameters directly from observational data.

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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