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Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1

Author

Listed:
  • Michaël Gillon

    (Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège)

  • Amaury H. M. J. Triaud

    (Institute of Astronomy)

  • Brice-Olivier Demory

    (University of Bern, Center for Space and Habitability
    Cavendish Laboratory, JJ Thomson Avenue)

  • Emmanuël Jehin

    (Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège)

  • Eric Agol

    (University of Washington
    NASA Astrobiology Institute’s Virtual Planetary Laboratory)

  • Katherine M. Deck

    (California Institute of Technology)

  • Susan M. Lederer

    (NASA Johnson Space Center)

  • Julien de Wit

    (Atmospheric and Planetary Sciences, Massachusetts Institute of Technology)

  • Artem Burdanov

    (Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège)

  • James G. Ingalls

    (Spitzer Science Center, California Institute of Technology)

  • Emeline Bolmont

    (NaXys, University of Namur
    Laboratoire AIM Paris-Saclay, CEA/DRF–CNRS–Univ. Paris Diderot - IRFU/SAp, Centre de Saclay)

  • Jeremy Leconte

    (Laboratoire d'astrophysique de Bordeaux, Université Bordeaux, CNRS, B18N, Allée Geoffroy Saint-Hilaire)

  • Sean N. Raymond

    (Laboratoire d'astrophysique de Bordeaux, Université Bordeaux, CNRS, B18N, Allée Geoffroy Saint-Hilaire)

  • Franck Selsis

    (Laboratoire d'astrophysique de Bordeaux, Université Bordeaux, CNRS, B18N, Allée Geoffroy Saint-Hilaire)

  • Martin Turbet

    (Laboratoire de Météorologie Dynamique, Sorbonne Universités, UPMC Univ Paris 06, CNRS, 4 Place Jussieu)

  • Khalid Barkaoui

    (Laboratoire LPHEA, Oukaimeden Observatory, Cadi Ayyad University/FSSM)

  • Adam Burgasser

    (Center for Astrophysics and Space Science, University of California San Diego)

  • Matthew R. Burleigh

    (Leicester Institute for Space and Earth Observation, University of Leicester)

  • Sean J. Carey

    (Spitzer Science Center, California Institute of Technology)

  • Aleksander Chaushev

    (Leicester Institute for Space and Earth Observation, University of Leicester)

  • Chris M. Copperwheat

    (Astrophysics Research Institute, Liverpool John Moores University)

  • Laetitia Delrez

    (Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège
    Cavendish Laboratory, JJ Thomson Avenue)

  • Catarina S. Fernandes

    (Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège)

  • Daniel L. Holdsworth

    (Jeremiah Horrocks Institute, University of Central Lancashire)

  • Enrico J. Kotze

    (South African Astronomical Observatory)

  • Valérie Van Grootel

    (Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège)

  • Yaseen Almleaky

    (Faculty of Science, King Abdulaziz University
    King Abdullah Centre for Crescent Observations and Astronomy, Makkah Clock)

  • Zouhair Benkhaldoun

    (Laboratoire LPHEA, Oukaimeden Observatory, Cadi Ayyad University/FSSM)

  • Pierre Magain

    (Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège)

  • Didier Queloz

    (Cavendish Laboratory, JJ Thomson Avenue
    Observatoire de Genève, Université de Genève, 51 chemin des Maillettes)

Abstract

Last year, three Earth-sized planets were discovered to be orbiting the nearby Jupiter-sized star TRAPPIST-1; now, follow-up photometric observations from the ground and from space show that there are at least seven Earth-sized planets in this star system, and that they might be the right temperature to harbour liquid water on their surfaces.

Suggested Citation

  • Michaël Gillon & Amaury H. M. J. Triaud & Brice-Olivier Demory & Emmanuël Jehin & Eric Agol & Katherine M. Deck & Susan M. Lederer & Julien de Wit & Artem Burdanov & James G. Ingalls & Emeline Bolmont, 2017. "Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1," Nature, Nature, vol. 542(7642), pages 456-460, February.
    • Handle: RePEc:nat:nature:v:542:y:2017:i:7642:d:10.1038_nature21360
    DOI: 10.1038/nature21360
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