Gravitational Wave Signal for Quark Matter with Realistic Phase Transition
Gravitational Wave Signal for Quark Matter with Realistic Phase Transition
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具有真实相变的夸克物质的引力波信号
DOI：
10.1103/physrevlett.130.091404
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发表时间：
2023
影响因子：
8.6
通讯作者：
Kyutoku Koutarou
中科院分区：
文献类型：
--
作者：
Fujimoto Yuki;Fukushima Kenji;Hotokezaka Kenta;Kyutoku Koutarou
中子星核在最大质量附近可以实现向夸克物质的过渡。引力波从二进制NS合并预计传达信息的状态方程（EOS）敏感的QM转变。在这里，我们提出了第一个结果的引力波模拟与现实的EOS是一致的从头计算方法的和pQCD，并假定通过平滑的交叉。我们将它们与另一个具有一阶强子-夸克相变的状态方程的结果进行比较。我们的研究结果表明，早期崩溃到一个黑洞在合并后的阶段NS合并后强烈表示软化的EOS与QM发病交叉的情况下。强子-夸克相变的性质可以进一步受到这样一个条件的限制，即电磁对应物应该由残留黑洞外部的物质来激发。
The cores of neutron stars (NSs) near the maximum mass can realize a transitional change to quark matter (QM). Gravitational waves from binary NS mergers are expected to convey information about the equation of state (EOS) sensitive to the QM transition. Here, we present the first results of gravitational wave simulation with the realistic EOS that is consistent withab initioapproaches ofand pQCD and is assumed to go through smooth crossover. We compare them to results obtained with another EOS with a first-order hadron-quark phase transition. Our results suggest that early collapse to a black hole in the post-merger stage after NS merger robustly signifies softening of the EOS associated with the QM onset in the crossover scenario. The nature of the hadron-quark phase transition can be further constrained by the condition that electromagnetic counterparts should be energized by the material left outside the remnant black hole.