Gravitational Wave Signal for Quark Matter with Realistic Phase Transition

被引：40

作者：

Fujimoto, Yuki ^{[1
,2
]}

Fukushima, Kenji ^{[1
]}

Hotokezaka, Kenta ^{[3
]}

Kyutoku, Koutarou ^{[4
,5
,6
]}

机构：

[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[2] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

[3] Univ Tokyo, Res Ctr Early Universe RESCEU, Tokyo 1130033, Japan

[4] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[5] Kyoto Univ, Yukawa Inst Theoret Phys, Ctr Gravitat Phys & Quantum Informat, Kyoto 6068502, Japan

[6] RIKEN, Interdisciplinary Theoret & Math Sci Program iTHEM, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW LETTERS | 2023年 / 130卷 / 09期

关键词：

EQUATION-OF-STATE; MASSES; RADII;

D O I：

10.1103/PhysRevLett.130.091404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 with ab initio approaches ofxEFT and 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.

引用

页数：7

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