preprintNatureJul 29, 2024HYBRID OA

Spectroscopic confirmation of two luminous galaxies at a redshift of 14

SCStefano CarnianiKHKevin HainlineFDFrancesco D’EugenioDJDaniel J. EisensteinPJP. Jakobsen

Scuola Normale Superiore · University of Arizona · +22 more institutions

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Abstract

Abstract The first observations of the James Webb Space Telescope (JWST) have revolutionized our understanding of the Universe by identifying galaxies at redshift z ≈ 13 (refs. 1–3 ). In addition, the discovery of many luminous galaxies at Cosmic Dawn ( z > 10) has suggested that galaxies developed rapidly, in apparent tension with many standard models 4–8 . However, most of these galaxies lack spectroscopic confirmation, so their distances and properties are uncertain. Here we present JWST Advanced Deep Extragalactic Survey–Near-Infrared Spectrograph spectroscopic confirmation of two luminous galaxies at $$z={14.32}_{-0.20}^{+0.08}$$ z = 14.32 − 0.20 + 0.08 and z = 13.90 ± 0.17. The spectra…

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Topics & keywords

Topics
Keywords
  • Galaxy
  • COSMIC cancer database
  • Physics
  • Astrophysics
  • Astronomy
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