Footprints of axion-like particle in pulsar timing array data and James Webb Space Telescope observations

IF 6.4 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Science China Physics, Mechanics & Astronomy Pub Date : 2024-09-09 DOI:10.1007/s11433-024-2445-1

Shu-Yuan Guo, Maxim Khlopov, Xuewen Liu, Lei Wu, Yongcheng Wu, Bin Zhu

引用次数: 0

Abstract

Several pulsar timing array (PTA) collaborations have recently reported the evidence for a stochastic gravitational-wave background (SGWB), which can unveil the formation of primordial seeds of inhomogeneities in the early universe. With the SGWB parameters inferred from PTAs data, we can make a prediction of the seeds for early galaxy formation from the domain walls in the axion-like particles (ALPs) field distribution. This also naturally provides a solution to the observation of high redshifts by the James Webb Space Telescope. The predicted photon coupling of the ALP is within the reach of future experimental searches.

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脉冲星定时阵列数据和詹姆斯-韦伯太空望远镜观测结果中的类轴子粒子足迹

一些脉冲星定时阵列（PTA）合作组织最近报告了随机引力波背景（SGWB）的证据，它可以揭示早期宇宙中不均匀性的原始种子的形成。通过PTAs数据推断出的SGWB参数，我们可以从类轴子粒子（ALPs）场分布中的域壁预测出早期星系形成的种子。这也自然为詹姆斯-韦伯太空望远镜观测高红移提供了解决方案。所预测的ALP光子耦合是未来实验搜索所能达到的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science China Physics, Mechanics & Astronomy PHYSICS, MULTIDISCIPLINARY-

CiteScore

10.30

自引率

6.20%

发文量

4047

审稿时长

3 months

期刊介绍： Science China Physics, Mechanics & Astronomy, an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China, and published by Science China Press, is committed to publishing high-quality, original results in both basic and applied research. Science China Physics, Mechanics & Astronomy, is published in both print and electronic forms. It is indexed by Science Citation Index. Categories of articles: Reviews summarize representative results and achievements in a particular topic or an area, comment on the current state of research, and advise on the research directions. The author’s own opinion and related discussion is requested. Research papers report on important original results in all areas of physics, mechanics and astronomy. Brief reports present short reports in a timely manner of the latest important results.