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Spectroscopic confirmation of two luminous galaxies at a redshift of 14.
Carniani, Stefano; Hainline, Kevin; D'Eugenio, Francesco; Eisenstein, Daniel J; Jakobsen, Peter; Witstok, Joris; Johnson, Benjamin D; Chevallard, Jacopo; Maiolino, Roberto; Helton, Jakob M; Willott, Chris; Robertson, Brant; Alberts, Stacey; Arribas, Santiago; Baker, William M; Bhatawdekar, Rachana; Boyett, Kristan; Bunker, Andrew J; Cameron, Alex J; Cargile, Phillip A; Charlot, Stéphane; Curti, Mirko; Curtis-Lake, Emma; Egami, Eiichi; Giardino, Giovanna; Isaak, Kate; Ji, Zhiyuan; Jones, Gareth C; Kumari, Nimisha; Maseda, Michael V; Parlanti, Eleonora; Pérez-González, Pablo G; Rawle, Tim; Rieke, George; Rieke, Marcia; Del Pino, Bruno Rodríguez; Saxena, Aayush; Scholtz, Jan; Smit, Renske; Sun, Fengwu; Tacchella, Sandro; Übler, Hannah; Venturi, Giacomo; Williams, Christina C; Willmer, Christopher N A.
Afiliación
  • Carniani S; Scuola Normale Superiore, Pisa, Italy. stefano.carniani@sns.it.
  • Hainline K; Steward Observatory, University of Arizona, Tucson, AZ, USA.
  • D'Eugenio F; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.
  • Eisenstein DJ; Cavendish Laboratory, University of Cambridge, Cambridge, UK.
  • Jakobsen P; Center for Astrophysics, Harvard & Smithsonian, Cambridge, MA, USA.
  • Witstok J; Cosmic Dawn Center (DAWN), Copenhagen, Denmark.
  • Johnson BD; Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark.
  • Chevallard J; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.
  • Maiolino R; Cavendish Laboratory, University of Cambridge, Cambridge, UK.
  • Helton JM; Center for Astrophysics, Harvard & Smithsonian, Cambridge, MA, USA.
  • Willott C; Department of Physics, University of Oxford, Oxford, UK.
  • Robertson B; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.
  • Alberts S; Cavendish Laboratory, University of Cambridge, Cambridge, UK.
  • Arribas S; Department of Physics and Astronomy, University College London, London, UK.
  • Baker WM; Steward Observatory, University of Arizona, Tucson, AZ, USA.
  • Bhatawdekar R; NRC Herzberg, Victoria, British Columbia, Canada.
  • Boyett K; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, USA.
  • Bunker AJ; Steward Observatory, University of Arizona, Tucson, AZ, USA.
  • Cameron AJ; Centro de Astrobiología (CAB), CSIC-INTA, Madrid, Spain.
  • Cargile PA; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.
  • Charlot S; Cavendish Laboratory, University of Cambridge, Cambridge, UK.
  • Curti M; European Space Agency (ESA), European Space Astronomy Centre (ESAC), Madrid, Spain.
  • Curtis-Lake E; School of Physics, University of Melbourne, Parkville, Victoria, Australia.
  • Egami E; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), Melbourne, Victoria, Australia.
  • Giardino G; Department of Physics, University of Oxford, Oxford, UK.
  • Isaak K; Department of Physics, University of Oxford, Oxford, UK.
  • Ji Z; Center for Astrophysics, Harvard & Smithsonian, Cambridge, MA, USA.
  • Jones GC; Institut d'Astrophysique de Paris, Sorbonne Université, CNRS, Paris, France.
  • Kumari N; European Southern Observatory, Garching, Germany.
  • Maseda MV; Centre for Astrophysics Research, Department of Physics, Astronomy and Mathematics, University of Hertfordshire, Hatfield, UK.
  • Parlanti E; Steward Observatory, University of Arizona, Tucson, AZ, USA.
  • Pérez-González PG; ATG Europe for the European Space Agency, ESTEC, Noordwijk, the Netherlands.
  • Rawle T; European Space Agency, ESTEC, Noordwijk, the Netherlands.
  • Rieke G; Steward Observatory, University of Arizona, Tucson, AZ, USA.
  • Rieke M; Department of Physics, University of Oxford, Oxford, UK.
  • Del Pino BR; AURA for European Space Agency, Space Telescope Science Institute, Baltimore, MD, USA.
  • Saxena A; Department of Astronomy, University of Wisconsin-Madison, Madison, WI, USA.
  • Scholtz J; Scuola Normale Superiore, Pisa, Italy.
  • Smit R; Centro de Astrobiología (CAB), CSIC-INTA, Madrid, Spain.
  • Sun F; European Space Agency (ESA), European Space Astronomy Centre (ESAC), Madrid, Spain.
  • Tacchella S; Steward Observatory, University of Arizona, Tucson, AZ, USA.
  • Übler H; Steward Observatory, University of Arizona, Tucson, AZ, USA.
  • Venturi G; Centro de Astrobiología (CAB), CSIC-INTA, Madrid, Spain.
  • Williams CC; Department of Physics, University of Oxford, Oxford, UK.
  • Willmer CNA; Department of Physics and Astronomy, University College London, London, UK.
Nature ; 633(8029): 318-322, 2024 Sep.
Article en En | MEDLINE | ID: mdl-39074505
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 models4-8. 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 and z = 13.90 ± 0.17. The spectra reveal ultraviolet continua with prominent Lyman-α breaks but no detected emission lines. This discovery proves that luminous galaxies were already in place 300 million years after the Big Bang and are more common than what was expected before JWST. The most distant of the two galaxies is unexpectedly luminous and is spatially resolved with a radius of 260 parsecs. Considering also the very steep ultraviolet slope of the second galaxy, we conclude that both are dominated by stellar continuum emission, showing that the excess of luminous galaxies in the early Universe cannot be entirely explained by accretion onto black holes. Galaxy formation models will need to address the existence of such large and luminous galaxies so early in cosmic history.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nature Año: 2024 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nature Año: 2024 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Reino Unido