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Showing 1–10 of 10 results
Advanced filters: Author: Emmanuël Jehin Clear advanced filters

  • Hubble observations of the TRAPPIST-1 system exclude the presence of H2-dominated cloud-free atmospheres for the three planets within or around the system’s habitable zone. This result supports the hypothesis that these planets are terrestrial in nature.

    • Julien de Wit
    • Hannah R. Wakeford
    • Amaury H. M. J. Triaud
    Research
    Nature Astronomy
    Volume: 2, P: 214-219

  • The Transiting Exoplanet Survey Satellite (TESS) has identified a nearby, bright, quiescent M dwarf star that hosts two sub-Neptune-sized planets and one super-Earth-sized planet. The system is eminently suitable for follow-up studies of transit timing variations, radial velocity measurements and transmission spectroscopy.

    • Maximilian N. Günther
    • Francisco J. Pozuelos
    • Ian A. Waite
    Research
    Nature Astronomy
    Volume: 3, P: 1099-1108

  • Orbital parameters for the seventh Earth-sized transiting planet around star TRAPPIST-1 are reported, along with an investigation into the complex three-body resonances linking every member of this planetary system.

    • Rodrigo Luger
    • Marko Sestovic
    • Didier Queloz
    Research
    Nature Astronomy
    Volume: 1, P: 1-8

  • 2M1510 is an approximately 45-million-year-old triple system of brown dwarfs, two of which form a close binary in a 20-day orbit and have almost the same mass (3.82% and 3.75% of the mass of the Sun, respectively). Their physical parameters are in good agreement with evolutionary models except for luminosity, suggesting that we might be underestimating the masses of brown dwarfs and massive exoplanets by about 30%.

    • Amaury H. M. J. Triaud
    • Adam J. Burgasser
    • Michaël Gillon
    Research
    Nature Astronomy
    Volume: 4, P: 650-657

  • A low-mass star that is just 12 parsecs away from Earth is shown to be transited by an Earth-sized planet, GJ 1132b, which probably has a rock/iron composition and might support a substantial atmosphere.

    • Zachory K. Berta-Thompson
    • Jonathan Irwin
    • Anaël Wünsche
    Research
    Nature
    Volume: 527, P: 204-207

  • 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.

    • Michaël Gillon
    • Amaury H. M. J. Triaud
    • Didier Queloz
    Research
    Nature
    Volume: 542, P: 456-460

  • Three Earth-sized planets—receiving similar irradiation to Venus and Earth, and ideally suited for atmospheric study—have been found transiting a nearby ultracool dwarf star that has a mass of only eight per cent of that of the Sun.

    • Michaël Gillon
    • Emmanuël Jehin
    • Didier Queloz
    Research
    Nature
    Volume: 533, P: 221-224