g modes of neutron stars with hadron-to-quark crossover transitions
g modes of neutron stars with hadron-to-quark crossover transitions
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DOI：
10.1103/physrevd.104.123032
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发表时间：
2021-09
影响因子：
5
通讯作者：
C. Constantinou;Sophia Han;P. Jaikumar;M. Prakash
中科院分区：
文献类型：
--
作者：
C. Constantinou;Sophia Han;P. Jaikumar;M. Prakash
我们进行了第一次研究的主要核心g$-模式振荡的混合星含有夸克物质，利用交叉模型的强子到夸克的过渡的启发格QCD。随后的结果进行比较，我们最近发现的$g$-模式的频率在混合星与一阶相变使用吉布斯建设。我们发现，模型使用吉布斯建设产量$g$-模式振幅和相关的重力辐射能量占主导地位的选择的交叉模型，由于不同的行为的平衡和绝热声速在各种模型。根据我们的研究结果，我们得出结论，$g$-模式被检测到升级的LIGO和处女座探测器，它将表明一个一阶相变类似于吉布斯建设。
We perform the first study of the principal core $g$-mode oscillation in hybrid stars containing quark matter, utilizing a crossover model for the hadron-to-quark transition inspired by lattice QCD. The ensuing results are compared with our recent findings of $g$-mode frequencies in hybrid stars with a first-order phase transition using Gibbs constructions. We find that models using Gibbs construction yield $g$-mode amplitudes and the associated gravitational energy radiated that dominate over those of the chosen crossover model owing to the distinct behaviors of the equilibrium and adiabatic sound speeds in the various models. Based on our results, we conclude that were $g$-modes to be detected in upgraded LIGO and Virgo detectors it would indicate a first-order phase transition akin to a Gibbs construction.