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A super-Earth transiting a nearby low-mass star

Author

Listed:
  • David Charbonneau

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

  • Zachory K. Berta

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

  • Jonathan Irwin

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

  • Christopher J. Burke

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

  • Philip Nutzman

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

  • Lars A. Buchhave

    (Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 USA
    Niels Bohr Institute, Copenhagen University, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark)

  • Christophe Lovis

    (Observatoire de Genève, Université de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland)

  • Xavier Bonfils

    (Observatoire de Genève, Université de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland
    Université Joseph Fourier – Grenoble 1, Centre national de la recherche scientifique, Laboratoire d’Astrophysique de Grenoble (LAOG), UMR 5571, 38041 Grenoble Cedex 09, France)

  • David W. Latham

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

  • Stéphane Udry

    (Observatoire de Genève, Université de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland)

  • Ruth A. Murray-Clay

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

  • Matthew J. Holman

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

  • Emilio E. Falco

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

  • Joshua N. Winn

    (Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA)

  • Didier Queloz

    (Observatoire de Genève, Université de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland)

  • Francesco Pepe

    (Observatoire de Genève, Université de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland)

  • Michel Mayor

    (Observatoire de Genève, Université de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland)

  • Xavier Delfosse

    (Université Joseph Fourier – Grenoble 1, Centre national de la recherche scientifique, Laboratoire d’Astrophysique de Grenoble (LAOG), UMR 5571, 38041 Grenoble Cedex 09, France)

  • Thierry Forveille

    (Université Joseph Fourier – Grenoble 1, Centre national de la recherche scientifique, Laboratoire d’Astrophysique de Grenoble (LAOG), UMR 5571, 38041 Grenoble Cedex 09, France)

Abstract

A super-Earth with atmosphere 'Super-Earths' are extrasolar planets about two to ten times the mass of the Earth, too small to be considered 'Jupiters'. Observations from the MEarth Project — using two 40-cm (16-inch) telescopes that will eventually be part of an eight-telescope array — have now identified a super-Earth (GJ 1214b) transiting a nearby low mass star. GJ 1214b has a mass 6.55 times that of the Earth and a radius of 2.68 'Earths'. As the star is small and only 13 parsecs away, the planetary atmosphere is available for direct study with current observatories.

Suggested Citation

  • David Charbonneau & Zachory K. Berta & Jonathan Irwin & Christopher J. Burke & Philip Nutzman & Lars A. Buchhave & Christophe Lovis & Xavier Bonfils & David W. Latham & Stéphane Udry & Ruth A. Murray-, 2009. "A super-Earth transiting a nearby low-mass star," Nature, Nature, vol. 462(7275), pages 891-894, December.
    • Handle: RePEc:nat:nature:v:462:y:2009:i:7275:d:10.1038_nature08679
    DOI: 10.1038/nature08679
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