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A massive protocluster of galaxies at a redshift of z ≈ 5.3

Author

Listed:
  • Peter L. Capak

    (Spitzer Science Centre, 314-6 California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA)

  • Dominik Riechers

    (249-17 California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA)

  • Nick Z. Scoville

    (249-17 California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA)

  • Chris Carilli

    (National Radio Astronomy Observatory, PO Box O)

  • Pierre Cox

    (Institut de Radio Astronomie Millimétrique, 300 rue de la Piscine, F-38406 St-Martin-d’Hères, France)

  • Roberto Neri

    (Institut de Radio Astronomie Millimétrique, 300 rue de la Piscine, F-38406 St-Martin-d’Hères, France)

  • Brant Robertson

    (249-17 California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA)

  • Mara Salvato

    (Max-Planck-Institute für Plasma Physics, Boltzmann Strasse 2, Garching 85748, Germany)

  • Eva Schinnerer

    (Max-Planck-Institute für Astronomie, Königstuhl 17, Heidelberg 69117, Germany)

  • Lin Yan

    (Spitzer Science Centre, 314-6 California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA)

  • Grant W. Wilson

    (University of Massachusetts, Lederle Graduate Research Tower B, 619E, 710 North Pleasant Street, Amherst, Massachusetts 01003-9305, USA)

  • Min Yun

    (University of Massachusetts, Lederle Graduate Research Tower B, 619E, 710 North Pleasant Street, Amherst, Massachusetts 01003-9305, USA)

  • Francesca Civano

    (Harvard Smithsonian Center for Astrophysics, 60 Garden Street, MS, 67, Cambridge, Massachusetts 02138, USA)

  • Martin Elvis

    (Harvard Smithsonian Center for Astrophysics, 60 Garden Street, MS, 67, Cambridge, Massachusetts 02138, USA)

  • Alexander Karim

    (Max-Planck-Institute für Astronomie, Königstuhl 17, Heidelberg 69117, Germany)

  • Bahram Mobasher

    (University of California)

  • Johannes G. Staguhn

    (Johns Hopkins University, Laboratory for Observational Cosmology, Code 665, Building 34, NASA’s Goddard Space Flight Center)

Abstract

An early look at a galactic cluster A 'protocluster' of massive galaxies at a redshift z = 5.3, dating to only a billion years after the Big Bang, has been discovered in data from the Cosmological Evolution Survey (COSMOS), a project combining the power of the Hubble Space Telescope and ground-based telescopes on 2 square degrees of sky in the constellation Sextans. The protocluster occupies an overdense region more than 13 megaparsecs (40 million light years) across, rich in molecular gas and young stars. Its properties match the predictions of galaxy formation simulations, suggesting that the protocluster will evolve into a massive galaxy cluster typical of those seen at lower redshifts.

Suggested Citation

  • Peter L. Capak & Dominik Riechers & Nick Z. Scoville & Chris Carilli & Pierre Cox & Roberto Neri & Brant Robertson & Mara Salvato & Eva Schinnerer & Lin Yan & Grant W. Wilson & Min Yun & Francesca Civ, 2011. "A massive protocluster of galaxies at a redshift of z ≈ 5.3," Nature, Nature, vol. 470(7333), pages 233-235, February.
    • Handle: RePEc:nat:nature:v:470:y:2011:i:7333:d:10.1038_nature09681
    DOI: 10.1038/nature09681
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