Abstract
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.
基金项目
National Natural Science Foundation of China(11921003)
National Natural Science Foundation of China(12233011)
Chinese Academy of Sciences via the Key Research Program of Frontier Sciences(QYZDJ-SSW-SYS024)
维普
万方数据