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

作　　者：Shu-Yuan Guo Maxim Khlopov Xuewen Liu Lei Wu Yongcheng Wu Bin Zhu 

机构地区：[1]Department of Physics,Yantai University,Yantai 264005 China [2]Institute of Physics,Southern Federal University,Rostov on Don 344090 Russia [3]National Research Nuclear University MEPhI(Moscow Engineering Physics Institute),Moscow 115409 Russia [4]Virtual Institute of Astroparticle Physics,Paris 75018 France [5]Department of Physics and Institute of Theoretical Physics,Nanjing Normal University,Nanjing 210023 China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2024年第11期55-62,共8页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.12275134,12147228,12335005,and 12275232);by Maxim Khlopov was carried out at Southern Federal University with financial support from the Ministry of Science and Higher Education of the Russian Federation (Grant No.GZ0110/2310-IF);supported by the National Natural Science Foundation of China (Grant Nos.12005180,and 12305113);the Natural Science Foundation of Shandong Province (Grant Nos.ZR2020QA083,and ZR2022QA026);the Project of Shandong Province Higher Educational Science and Technology Program (Grant No.2022KJ271)。

摘　　要：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.

关 键 词：stochastic gravitational-wave background pulsar timing array axion-like particle JWST 

分 类 号：P142.84[天文地球—天体物理]