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Warm–hot baryons comprise 5–10 per cent of filaments in the cosmic web

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Listed:
  • Dominique Eckert

    (University of Geneva, Chemin d’Ecogia 16
    INAF – IASF Milano, Via E. Bassini 15)

  • Mathilde Jauzac

    (Institute for Computational Cosmology, Durham University
    Astrophysics and Cosmology Research Unit, School of Mathematical Sciences, University of KwaZulu-Natal)

  • HuanYuan Shan

    (Laboratoire d’Astrophysique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny)

  • Jean-Paul Kneib

    (Laboratoire d’Astrophysique, Ecole Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny
    Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326)

  • Thomas Erben

    (Argelander-Institut für Astronomie, Auf dem Hügel 71)

  • Holger Israel

    (Institute for Computational Cosmology, Durham University)

  • Eric Jullo

    (Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille) UMR 7326)

  • Matthias Klein

    (Argelander-Institut für Astronomie, Auf dem Hügel 71)

  • Richard Massey

    (Institute for Computational Cosmology, Durham University)

  • Johan Richard

    (CRAL, Observatoire de Lyon, Université Lyon 1)

  • Céline Tchernin

    (University of Geneva, Chemin d’Ecogia 16)

Abstract

In the local Universe, the census of all observed baryons falls short of the estimated number by a factor of two, and simulations have indicated that the missing baryons reside throughout the filaments of the cosmic web; X-ray observations of filamentary structures associated with the galaxy cluster Abell 2744 now find that 5 to 10 per cent of the filament mass is in the form of baryonic gas.

Suggested Citation

  • Dominique Eckert & Mathilde Jauzac & HuanYuan Shan & Jean-Paul Kneib & Thomas Erben & Holger Israel & Eric Jullo & Matthias Klein & Richard Massey & Johan Richard & Céline Tchernin, 2015. "Warm–hot baryons comprise 5–10 per cent of filaments in the cosmic web," Nature, Nature, vol. 528(7580), pages 105-107, December.
    • Handle: RePEc:nat:nature:v:528:y:2015:i:7580:d:10.1038_nature16058
    DOI: 10.1038/nature16058
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