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An Earth-sized planet with an Earth-like density

Author

Listed:
  • Francesco Pepe

    (Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland)

  • Andrew Collier Cameron

    (Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK)

  • David W. Latham

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Emilio Molinari

    (INAF - Fundación Galileo Galilei, Rambla José Ana Fernandez Pérez 7, 38712 Breña Baja, Spain
    INAF - IASF Milano, via Bassini 15, 20133 Milano, Italy)

  • Stéphane Udry

    (Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland)

  • Aldo S. Bonomo

    (INAF - Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025 Pino Torinese, Italy)

  • Lars A. Buchhave

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
    Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, DK-1350 Copenhagen, Denmark)

  • David Charbonneau

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Rosario Cosentino

    (INAF - Fundación Galileo Galilei, Rambla José Ana Fernandez Pérez 7, 38712 Breña Baja, Spain
    INAF - Osservatorio Astrofisico di Catania, via Santa Sofia 78, 95125 Catania, Italy)

  • Courtney D. Dressing

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Xavier Dumusque

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Pedro Figueira

    (Centro de Astrofísica, Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portugal)

  • Aldo F. M. Fiorenzano

    (INAF - Fundación Galileo Galilei, Rambla José Ana Fernandez Pérez 7, 38712 Breña Baja, Spain)

  • Sara Gettel

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Avet Harutyunyan

    (INAF - Fundación Galileo Galilei, Rambla José Ana Fernandez Pérez 7, 38712 Breña Baja, Spain)

  • Raphaëlle D. Haywood

    (Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK)

  • Keith Horne

    (Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK)

  • Mercedes Lopez-Morales

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Christophe Lovis

    (Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland)

  • Luca Malavolta

    (Universita’ di Padova, Vicolo dell’Osservatorio 3, 35122 Padova, Italy
    INAF - Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy)

  • Michel Mayor

    (Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland)

  • Giusi Micela

    (INAF - Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90124 Palermo, Italy)

  • Fatemeh Motalebi

    (Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland)

  • Valerio Nascimbeni

    (INAF - Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy)

  • David Phillips

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Giampaolo Piotto

    (Universita’ di Padova, Vicolo dell’Osservatorio 3, 35122 Padova, Italy
    INAF - Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy)

  • Don Pollacco

    (University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK)

  • Didier Queloz

    (Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland
    Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, UK)

  • Ken Rice

    (Scottish Universities Physics Alliance, Institute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh EH93HJ, UK)

  • Dimitar Sasselov

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Damien Ségransan

    (Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland)

  • Alessandro Sozzetti

    (INAF - Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025 Pino Torinese, Italy)

  • Andrew Szentgyorgyi

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street)

  • Christopher A. Watson

    (Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK)

Abstract

Data from the Kepler spacecraft and the HARPS-N ground-based spectrograph indicate that the extrasolar planet Kepler-78b has a mean density similar to that of Earth and imply that it is composed of rock and iron.

Suggested Citation

  • Francesco Pepe & Andrew Collier Cameron & David W. Latham & Emilio Molinari & Stéphane Udry & Aldo S. Bonomo & Lars A. Buchhave & David Charbonneau & Rosario Cosentino & Courtney D. Dressing & Xavier , 2013. "An Earth-sized planet with an Earth-like density," Nature, Nature, vol. 503(7476), pages 377-380, November.
    • Handle: RePEc:nat:nature:v:503:y:2013:i:7476:d:10.1038_nature12768
    DOI: 10.1038/nature12768
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