Carbonaceous dust grains seen in the first billion years of cosmic time.

Autor: Witstok J; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK. jnw30@cam.ac.uk.; Cavendish Laboratory, University of Cambridge, Cambridge, UK. jnw30@cam.ac.uk., Shivaei I; Steward Observatory, University of Arizona, Tucson, AZ, USA. ishivaei@cab.inta-csic.es., Smit R; Astrophysics Research Institute, Liverpool John Moores University, Liverpool, UK. r.smit@ljmu.ac.uk., Maiolino R; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.; Cavendish Laboratory, University of Cambridge, Cambridge, UK.; Department of Physics and Astronomy, University College London, London, UK., Carniani S; Scuola Normale Superiore, Pisa, Italy., Curtis-Lake E; Centre for Astrophysics Research, Department of Physics, Astronomy and Mathematics, University of Hertfordshire, Hatfield, UK., Ferruit P; European Space Agency, European Space Astronomy Centre, Madrid, Spain., Arribas S; Centro de Astrobiología, CSIC-INTA, Madrid, Spain., Bunker AJ; Department of Physics, University of Oxford, Oxford, UK., Cameron AJ; Department of Physics, University of Oxford, Oxford, UK., Charlot S; Sorbonne Université, CNRS, Institut d'Astrophysique de Paris, Paris, France., Chevallard J; Department of Physics, University of Oxford, Oxford, UK., Curti M; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.; Cavendish Laboratory, University of Cambridge, Cambridge, UK.; European Southern Observatory, Garching bei München, Germany., de Graaff A; Max-Planck-Institut für Astronomie, Heidelberg, Germany., D'Eugenio F; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.; Cavendish Laboratory, University of Cambridge, Cambridge, UK., Giardino G; ATG Europe for the European Space Agency, ESTEC, Noordwijk, the Netherlands., Looser TJ; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.; Cavendish Laboratory, University of Cambridge, Cambridge, UK., Rawle T; European Space Agency, Space Telescope Science Institute, Baltimore, MD, USA., Rodríguez Del Pino B; Centro de Astrobiología, CSIC-INTA, Madrid, Spain., Willott C; NRC Herzberg, Victoria, British Columbia, Canada., Alberts S; Steward Observatory, University of Arizona, Tucson, AZ, USA., Baker WM; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.; Cavendish Laboratory, University of Cambridge, Cambridge, UK., Boyett K; School of Physics, University of Melbourne, Parkville, Victoria, Australia.; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)., Egami E; Steward Observatory, University of Arizona, Tucson, AZ, USA., Eisenstein DJ; Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA, USA., Endsley R; Department of Astronomy, University of Texas, Austin, TX, USA., Hainline KN; Steward Observatory, University of Arizona, Tucson, AZ, USA., Ji Z; Steward Observatory, University of Arizona, Tucson, AZ, USA., Johnson BD; Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA, USA., Kumari N; AURA for European Space Agency, Space Telescope Science Institute, Baltimore, MD, USA., Lyu J; Steward Observatory, University of Arizona, Tucson, AZ, USA., Nelson E; Department for Astrophysical and Planetary Science, University of Colorado, Boulder, CO, USA., Perna M; Centro de Astrobiología, CSIC-INTA, Madrid, Spain., Rieke M; Steward Observatory, University of Arizona, Tucson, AZ, USA., Robertson BE; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, USA., Sandles L; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.; Cavendish Laboratory, University of Cambridge, Cambridge, UK., Saxena A; Department of Physics and Astronomy, University College London, London, UK.; Department of Physics, University of Oxford, Oxford, UK., Scholtz J; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.; Cavendish Laboratory, University of Cambridge, Cambridge, UK., Sun F; Steward Observatory, University of Arizona, Tucson, AZ, USA., Tacchella S; Kavli Institute for Cosmology, University of Cambridge, Cambridge, UK.; Cavendish Laboratory, University of Cambridge, Cambridge, UK., Williams CC; NSF's National Optical-Infrared Astronomy Research Laboratory, Tucson, AZ, USA., Willmer CNA; Steward Observatory, University of Arizona, Tucson, AZ, USA.
Jazyk: angličtina
Zdroj: Nature [Nature] 2023 Sep; Vol. 621 (7978), pp. 267-270. Date of Electronic Publication: 2023 Jul 19.
DOI: 10.1038/s41586-023-06413-w
Abstrakt: Large dust reservoirs (up to approximately 10 8  M ⊙ ) have been detected 1-3 in galaxies out to redshift z ≃ 8, when the age of the Universe was only about 600 Myr. Generating substantial amounts of dust within such a short timescale has proven challenging for theories of dust formation 4,5 and has prompted the revision of the modelling of potential sites of dust production 6-8 , such as the atmospheres of asymptotic giant branch stars in low-metallicity environments, supernova ejecta and the accelerated growth of grains in the interstellar medium. However, degeneracies between different evolutionary pathways remain when the total dust mass of galaxies is the only available observable. Here we report observations of the 2,175 Å dust attenuation feature, which is well known in the Milky Way and galaxies at z ≲ 3 (refs. 9-11 ), in the near-infrared spectra of galaxies up to z ≃ 7, corresponding to the first billion years of cosmic time. The relatively short timescale implied for the formation of carbonaceous grains giving rise to this feature 12 suggests a rapid production process, possibly in Wolf-Rayet stars or supernova ejecta.
(© 2023. The Author(s).)
Databáze: MEDLINE
Externí odkaz: