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Showing 1–8 of 8 results
Advanced filters: Author: Pascal Tremblin Clear advanced filters

  • Silane, which is a precursor to the sandy surfaces of rocky planets and dusty clouds on gas giants, is seen directly in another world—a low-metallicity brown dwarf in which oxidation is slow and gas mixing is fast.

    • Jacqueline K. Faherty
    • Aaron M. Meisner
    • Eduardo L. Martin
    Research
    Nature
    Volume: 645, P: 62-66

  • Simultaneous observations of TRAPPIST-1 b from JWST at 12.8 and 15 μm indicate that it is probably a bare rock with a mineral-rich surface. However, an alternative scenario with a CO2-rich atmosphere and hazes could also explain the observations.

    • Elsa Ducrot
    • Pierre-Olivier Lagage
    • Gillian Wright
    Research
    Nature Astronomy
    Volume: 9, P: 358-369

  • The JWST MIRI transmission spectrum of WASP-107b, a transiting planet with Neptune-like mass and Jupiter-like radius, shows observations of sulfur dioxide and silicate clouds but no methane in its atmosphere, providing evidence of disequilibrium chemistry and active photochemistry.

    • Achrène Dyrek
    • Michiel Min
    • Gillian Wright
    Research
    Nature
    Volume: 625, P: 51-54

  • Observations from the JWST MIRI showed the detection of 14NH3 and 15NH3 isotopologues in the atmosphere of a cool brown dwarf, along with a 14N/15N value consistent with star-like formation by gravitational collapse.

    • David Barrado
    • Paul Mollière
    • Gillian Wright
    Research
    Nature
    Volume: 624, P: 263-266

  • Observations from the JWST show the presence of a spectral absorption feature at 4.05 μm arising from SO2 in the atmosphere of the gas giant exoplanet WASP-39b, which is produced by photochemical processes and verified by numerical models.

    • Shang-Min Tsai
    • Elspeth K. H. Lee
    • Sergei N. Yurchenko
    ResearchOpen Access
    Nature
    Volume: 617, P: 483-487

  • Transmission spectroscopy observations from the James Webb Space Telescope show the detection of carbon dioxide in the atmosphere of the gas giant exoplanet WASP-39b.

    • Eva-Maria Ahrer
    • Lili Alderson
    • Sebastian Zieba
    ResearchOpen Access
    Nature
    Volume: 614, P: 649-652

  • Observations of the gas-giant exoplanet WASP-121b reveal near-infrared emission lines of water, suggesting that the planet has a stratosphere—a layer in the upper atmosphere where temperature increases with altitude.

    • Thomas M. Evans
    • David K. Sing
    • Roxana Lupu
    Research
    Nature
    Volume: 548, P: 58-61