articleThe Astrophysical Journal LettersSep 1, 2023GOLD OA

UNCOVER: The Growth of the First Massive Black Holes from JWST/NIRSpec—Spectroscopic Redshift Confirmation of an X-Ray Luminous AGN at z = 10.1

ADAndy D. GouldingJEJenny E. GreeneDJDavid J. SettonILIvo LabbéRBRachel Bezanson

Princeton University · University of Pittsburgh · +22 more institutions

Indexed incrossrefdoaj

Abstract

Abstract The James Webb Space Telescope is now detecting early black holes (BHs) as they transition from “seeds” to supermassive BHs. Recently, Bogdan et al. reported the detection of an X-ray luminous supermassive BH, UHZ-1, with a photometric redshift at z > 10. Such an extreme source at this very high redshift provides new insights on seeding and growth models for BHs given the short time available for formation and growth. Harnessing the exquisite sensitivity of JWST/NIRSpec, here we report the spectroscopic confirmation of UHZ-1 at z = 10.073 ± 0.002. We find that the NIRSpec/Prism spectrum is typical of recently discovered z ≈ 10 galaxies, characterized primarily by star formation features. We see no…

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Topics & keywords

Topics
Keywords
  • Physics
  • Redshift
  • Astrophysics
  • Supermassive black hole
  • Galaxy
  • Photometry (optics)
  • James Webb Space Telescope
  • Population
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