First Constraints on the Photon Coupling of Axionlike Particles from Multimessenger Studies of the Neutron Star Merger GW170817

被引：0

作者：

Dev, P. S. Bhupal ^{[1
,2
]}

Fortin, Jean-Francois ^{[3
]}

Harris, Steven P. ^{[4
]}

Sinha, Kuver ^{[5
]}

Zhang, Yongchao ^{[6
]}

机构：

[1] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[2] Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA

[3] Univ Laval, Dept Phys Genie Phys & Opt, Quebec City, PQ G1V 0A6, Canada

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

[5] Univ Oklahoma, Dept Phys & Astron, Norman, OK 73019 USA

[6] Southeast Univ, Sch Phys, Nanjing 211189, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 10期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 中国国家自然科学基金;

关键词：

GAMMA-RAY EMISSION; NUCLEOSYNTHESIS; INVARIANCE;

D O I：

10.1103/PhysRevLett.132.101003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use multimessenger observations of the neutron star merger event GW170817 to derive new constraints on axionlike particles (ALPs) coupling to photons. ALPs are produced via Primakoff and photon coalescence processes in the merger, escape the remnant, and decay back into two photons, giving rise to a photon signal approximately along the line of sight to the merger. We analyze the spectral and temporal information of the ALP-induced photon signal and use the Fermi Large Area Telescope (FermiLAT) observations of GW170817 to derive our new ALP constraints. We also show the improved prospects with future MeV gamma-ray missions, taking the spectral and temporal coverage of Fermi-LAT as an example.

引用

页数：8

共 50 条

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