An 800-million-solar-mass black hole in a significantly neutral Universe at a redshift of 7.5

Eduardo Bañados (), Bram P. Venemans, Chiara Mazzucchelli, Emanuele P. Farina, Fabian Walter, Feige Wang, Roberto Decarli, Daniel Stern, Xiaohui Fan, Frederick B. Davies, Joseph F. Hennawi, Robert A. Simcoe, Monica L. Turner, Hans-Walter Rix, Jinyi Yang, Daniel D. Kelson, Gwen C. Rudie and Jan Martin Winters
Additional contact information
Eduardo Bañados: The Observatories of the Carnegie Institution for Science
Bram P. Venemans: Max Planck Institut für Astronomie
Chiara Mazzucchelli: Max Planck Institut für Astronomie
Emanuele P. Farina: Max Planck Institut für Astronomie
Fabian Walter: Max Planck Institut für Astronomie
Feige Wang: School of Physics, Peking University
Roberto Decarli: Max Planck Institut für Astronomie
Daniel Stern: Jet Propulsion Laboratory, California Institute of Technology
Xiaohui Fan: Steward Observatory, The University of Arizona
Frederick B. Davies: Broida Hall, University of California
Joseph F. Hennawi: Broida Hall, University of California
Robert A. Simcoe: MIT-Kavli Center for Astrophysics and Space Research
Monica L. Turner: MIT-Kavli Center for Astrophysics and Space Research
Hans-Walter Rix: Max Planck Institut für Astronomie
Jinyi Yang: School of Physics, Peking University
Daniel D. Kelson: The Observatories of the Carnegie Institution for Science
Gwen C. Rudie: The Observatories of the Carnegie Institution for Science
Jan Martin Winters: Institut de Radioastronomie Millimétrique (IRAM)

Nature, 2018, vol. 553, issue 7689, 473-476

Abstract: Observations of a quasar at redshift 7.54, when the Universe was just five per cent of its current age, suggest that the Universe was significantly neutral at this epoch.

Date: 2018
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DOI: 10.1038/nature25180

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