Black holes as the source of dark energy:A stringent test with high-redshift JWST AGNs  

作　　者：Lei Lei Lei Zu Guan-Wen Yuan Zhao-Qiang Shen Yi-Ying Wang Yuan-Zhu Wang Zhen-Bo Su Wen-Ke Ren Shao-Peng Tang Hao Zhou Chi Zhang Zhi-Ping Jin Lei Feng Yi-Zhong Fan Da-Ming Wei 

机构地区：[1]Key Laboratory of Dark Matter and Space Astronomy,Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023,China [2]School of Astronomy and Space Science,University of Science and Technology of China,Hefei 230026,China [3]CAS Key Laboratory for Research in Galaxies and Cosmology,Department of Astronomy,University of Science and Technology of China,Hefei 230026,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2024年第2期181-188,共8页中国科学：物理学、力学、天文学（英文版）

基　　金：support of Cyrus Chun Ying Tang Foundations;supported by the National Natural Science Foundation of China(Grant Nos.11921003,and 12233011);the Chinese Academy of Sciences via the Key Research Program of Frontier Sciences(Grant No.QYZDJ-SSWSYS024)。

摘　　要：Studies have proposed that there is evidence for cosmological coupling of black holes(BHs)with an index of k≈3;hence,BHs serve as the astrophysical source of dark energy.However,the data sample is limited for the redshifts of≤2.5.In recent years,the James Webb Space Telescope(JWST)has detected many high-redshift active galactic nuclei(AGNs)and quasars.Among the JWST NIRSpec-/NIRCam-resolved AGNs,three are determined to be in early-type host galaxies with a redshift of z~4.5-7.However,their M_(*)and MBH are in tension with the predicted cosmological coupling of black holes with k=3 at a confidence level of~2σ,which challenges the hypothesis that BHs serve as the origin of dark energy.Future work on high-redshift AGNs using the JWST will further assess such a hypothesis by identifying more early-type host galaxies in the higher mass range.

关 键 词：dark energy supermassive black hole active galactic nuclei James Webb Space Telescope 

分 类 号：P14[天文地球—天体物理]