A luminous quasar at a redshift of z = 7.085
Daniel J. Mortlock,Stephen J. Warren,Bram Venemans,Mitesh Patel,Paul C. Hewett,Richard G. McMahon,Chris Simpson,Tom Theuns,Tom Theuns,E. Gonzales-Solares,Andy Adamson,Simon Dye,Nigel Hambly,Paul Hirst,Mike Irwin,Ernst Kuiper,Andy Lawrence,Huub Röttgering +17 more
TLDR
Observations of a quasar at a redshift of 7.3 are reported, suggesting that the neutral fraction of the intergalactic medium in front of ULAS J1120+0641 exceeded 0.1.Abstract:
Quasars have historically been identified in optical surveys, which are insensitive to sources at z > 6.5. Infrared deep-sky survey data now make it possible to explore higher redshifts, with the result that a luminous quasar (ULAS J1120+0641) with a redshift z = 7.085, beyond the previous high of z = 6.44, has now been identified. Further observations of this and other distant quasars should reveal the ionization state of the Universe as it was only about 0.75 billion years after the Big Bang. The intergalactic medium was not completely reionized until approximately a billion years after the Big Bang, as revealed1 by observations of quasars with redshifts of less than 6.5. It has been difficult to probe to higher redshifts, however, because quasars have historically been identified2,3,4 in optical surveys, which are insensitive to sources at redshifts exceeding 6.5. Here we report observations of a quasar (ULAS J112001.48+064124.3) at a redshift of 7.085, which is 0.77 billion years after the Big Bang. ULAS J1120+0641 has a luminosity of 6.3 × 1013L⊙ and hosts a black hole with a mass of 2 × 109M⊙ (where L⊙ and M⊙ are the luminosity and mass of the Sun). The measured radius of the ionized near zone around ULAS J1120+0641 is 1.9 megaparsecs, a factor of three smaller than is typical for quasars at redshifts between 6.0 and 6.4. The near-zone transmission profile is consistent with a Lyα damping wing5, suggesting that the neutral fraction of the intergalactic medium in front of ULAS J1120+0641 exceeded 0.1.read more
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Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
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Posted Content
Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies: Supplemental Material
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An 800-million-solar-mass black hole in a significantly neutral Universe at a redshift of 7.5
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TL;DR: Strong evidence of absorption of the spectrum of the quasar redwards of the Lyman α emission line (the Gunn–Peterson damping wing), as would be expected if a significant amount of the hydrogen in the intergalactic medium surrounding J1342 + 0928 is neutral, and a significant fraction of neutral hydrogen is derived, although the exact fraction depends on the modelling.
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The Low-luminosity End of the Radius-Luminosity Relationship for Active Galactic Nuclei
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The Dark Energy Survey: more than dark energy - an overview
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References
More filters
Journal ArticleDOI
The Sloan Digital Sky Survey: Technical Summary
TL;DR: The Sloan Digital Sky Survey (SDSS) as mentioned in this paper provides the data to support detailed investigations of the distribution of luminous and non-luminous matter in the Universe: a photometrically and astrometrically calibrated digital imaging survey of pi steradians above about Galactic latitude 30 degrees in five broad optical bands.
Journal ArticleDOI
The Sloan Digital Sky Survey: Technical summary
Donald G. York,Jennifer Adelman,John E. Anderson,Scott F. Anderson,James Annis,Neta A. Bahcall,J. A. Bakken,Robert H. Barkhouser,Steven Bastian,E. Berman,William N. Boroski,Steve Bracker,Charlie Briegel,John W. Briggs,Jon Brinkmann,Robert J. Brunner,Scott Burles,Larry N. Carey,Michael A. Carr,Francisco J. Castander,Francisco J. Castander,Bing Chen,Patrick L. Colestock,Andrew J. Connolly,James H. Crocker,István Csabai,István Csabai,Paul C. Czarapata,John Eric Davis,Mamoru Doi,Tom Dombeck,Daniel J. Eisenstein,Nancy Ellman,Brian R. Elms,Brian R. Elms,Michael L. Evans,Xiaohui Fan,Glenn R. Federwitz,Larry Fiscelli,Scott D. Friedman,Joshua A. Frieman,Joshua A. Frieman,Masataka Fukugita,Bruce Gillespie,James E. Gunn,Vijay K. Gurbani,Ernst De Haas,M. Haldeman,Frederick H. Harris,Jeffrey J. E. Hayes,Timothy M. Heckman,Gregory S. Hennessy,Robert B. Hindsley,S. Holm,Donald J. Holmgren,Chi Hao Huang,Charles L. Hull,Don Husby,Shin-Ichi Ichikawa,Takashi Ichikawa,Zěljko Ivezić,Stephen M. Kent,Rita S. J. Kim,E. Kinney,Mark A. Klaene,A. N. Kleinman,Scot Kleinman,Gillian R. Knapp,John Korienek,Richard G. Kron,Richard G. Kron,Peter Z. Kunszt,D. Q. Lamb,Brian C. Lee,R. French Leger,Siriluk Limmongkol,Carl Lindenmeyer,Dan Long,Craig Loomis,Jon Loveday,Rich Lucinio,Robert H. Lupton,Bryan Mackinnon,Bryan Mackinnon,Edward J. Mannery,Paul M. Mantsch,Bruce Margon,Peregrine M. McGehee,Timothy A. McKay,Avery Meiksin,Aronne Merelli,David G. Monet,Jeffrey A. Munn,Vijay K. Narayanan,Thomas Nash,Eric H. Neilsen,Rich Neswold,Heidi Jo Newberg,Heidi Jo Newberg,Robert C. Nichol,T. Nicinski,T. Nicinski,Mario Nonino,Norio Okada,Sadanori Okamura,Jeremiah P. Ostriker,Russell Owen,A. George Pauls,John Peoples,R. Peterson,Don Petravick,Jeffrey R. Pier,Adrian Pope,Ruth Pordes,Angela Prosapio,R. Rechenmacher,Thomas R. Quinn,Gordon T. Richards,Michael Richmond,Claudio H. Rivetta,Constance M. Rockosi,Kurt Ruthmansdorfer,Dale Sandford,David J. Schlegel,Donald P. Schneider,Maki Sekiguchi,G. Sergey,Kazuhiro Shimasaku,Walter A. Siegmund,Stephen A. Smee,J. Allyn Smith,S. A. Snedden,Robert Stone,Chris Stoughton,Michael A. Strauss,Christopher W. Stubbs,Mark SubbaRao,Alexander S. Szalay,István Szapudi,Gyula P. Szokoly,Anirudda R. Thakar,Christy Tremonti,Douglas L. Tucker,Alan Uomoto,Daniel E. Vanden Berk,Michael S. Vogeley,Patrick Waddell,Shu I. Wang,Masaru Watanabe,David H. Weinberg,Brian Yanny,Naoki Yasuda +151 more
TL;DR: The Sloan Digital Sky Survey (SDSS) as discussed by the authors provides the data to support detailed investigations of the distribution of luminous and non-luminous matter in the universe: a photometrically and astrometrically calibrated digital imaging survey of π sr above about Galactic latitude 30° in five broad optical bands to a depth of g' ~ 23 mag.
Journal ArticleDOI
The FIRST Survey: Faint Images of the Radio Sky at twenty centimeters
TL;DR: The first year of the First Radio Sky at Twenty centimeters (FIRST) survey as discussed by the authors was performed using the NRAO Very Large Array (VLA) with a total of 144 hr of time in 1993 April and May was used for a variety of tests, as well as to cover an initial strip of the survey extending between 07{sup h}15{sup m} and 16{suph}30{supm} in a 2{sq_bullet}8 wide declination zone passing through the local zenith.
Journal ArticleDOI
The UKIRT Infrared Deep Sky Survey (UKIDSS)
Andy Lawrence,Stephen J. Warren,Omar Almaini,Alastair C. Edge,Nigel Hambly,Richard F. Jameson,Philip W. Lucas,M. Casali,Andrew J. Adamson,Simon Dye,J. P. Emerson,S. Foucaud,P. C. Hewett,Paul Hirst,Simon Hodgkin,Mike Irwin,N. Lodieu,Richard G. McMahon,Chris Simpson,Chris Simpson,Ian Smail,Daniel J. Mortlock,M. Folger +22 more
TL;DR: The final version published in MNRAS August 2007 included significant revisions including significant revisions to the original version April 2006.
Journal ArticleDOI
Five-year wilkinson microwave anisotropy probe * observations: likelihoods and parameters from the wmap data
Jo Dunkley,Jo Dunkley,Eiichiro Komatsu,M. R. Nolta,David N. Spergel,Davin Larson,Gary Hinshaw,Lyman A. Page,Charles L. Bennett,B. Gold,N. Jarosik,Janet Weiland,Mark Halpern,Robert S. Hill,Alan J. Kogut,Michele Limon,S. S. Meyer,Gregory S. Tucker,Edward J. Wollack,Edward L. Wright +19 more
TL;DR: In this paper, the authors present cosmological constraints from the Wilkinson Microwave Anisotropy Probe (WMAP) alone for both the ACDM model and a set of possible extensions.
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