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Showing 1–7 of 7 results
Advanced filters: Author: Alessandro Sozzetti Clear advanced filters

  • Observations of the super-massive Neptune-sized transiting planet TOI-1853 b show a mass almost twice that of any other Neptune-sized planet known so far and a bulk density implying that heavy elements dominate its mass.

    • Luca Naponiello
    • Luigi Mancini
    • Tiziano Zingales
    Research
    Nature
    Volume: 622, P: 255-260

  • 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.

    • Francesco Pepe
    • Andrew Collier Cameron
    • Christopher A. Watson
    Research
    Nature
    Volume: 503, P: 377-380

  • Absorption lines of iron in the dayside atmosphere of an ultrahot giant exoplanet disappear after travelling across the nightside, showing that the iron has condensed during its travel.

    • David Ehrenreich
    • Christophe Lovis
    • Filippo Zerbi
    Research
    Nature
    Volume: 580, P: 597-601

  • The signatures of water, carbon monoxide, hydrogen cyanide, methane, ammonia and acetylene are observed in the transmission spectrum of the hot Jupiter HD 209458b, with abundance ratios suggesting a super-solar carbon-to-oxygen ratio.

    • Paolo Giacobbe
    • Matteo Brogi
    • Andrea Tozzi
    Research
    Nature
    Volume: 592, P: 205-208

  • The authors find that a nearby planetary system has two terrestrial planets that transit in front of their star (from our perspective). Transiting terrestrial planets are sought after, as they can be characterized in detail, including their atmospheres. Having two in the same system is very rare.

    • Michaël Gillon
    • Brice-Olivier Demory
    • Alessandro Sozzetti
    Research
    Nature Astronomy
    Volume: 1, P: 1-6

  • Kepler-107 b and c have the same radius but, contrary to expectations, the outermost Kepler-107 c is much denser. This difference cannot be explained by photoevaporation by stellar high-energy particle flux and it suggests that Kepler-107 c experienced a giant impact event.

    • Aldo S. Bonomo
    • Li Zeng
    • Chris Watson
    Research
    Nature Astronomy
    Volume: 3, P: 416-423