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Showing 1–7 of 7 results
Advanced filters: Author: Ludmila Carone Clear advanced filters

  • Infrared brightening and luminosity observations from a young, solar-like star suggest a collision between two exoplanets producing a hot, highly extended post-impact remnant and transit of the debris causing the visible light eclipse of the host star.

    • Matthew Kenworthy
    • Simon Lock
    • Michael Rizzo Smith
    Research
    Nature
    Volume: 622, P: 251-254

  • The atmospheric terminator region of WASP-39 b, a hot gas giant exoplanet, is inhomogeneous, despite past assumptions, with the evening terminator being hotter and thus probably clearer, and the morning terminator probably being cloudy and consequently cooler.

    • Néstor Espinoza
    • Maria E. Steinrueck
    • Nicolas Crouzet
    ResearchOpen Access
    Nature
    Volume: 632, P: 1017-1020

  • Time-series observations from the JWST of the transiting exoplanet WASP-39b show gaseous water in the planet’s atmosphere and place an upper limit on the abundance of methane.

    • Eva-Maria Ahrer
    • Kevin B. Stevenson
    • Xi Zhang
    ResearchOpen Access
    Nature
    Volume: 614, P: 653-658

  • Phase-resolved mid-infrared observations from JWST of the hot gas giant WASP-43b detect a day–night difference of 659 ± 19 K. Comparison with climate models shows that the observations are compatible with cloudy skies, at least on the nightside, and the lack of methane detection suggests the presence of disequilibrium chemistry.

    • Taylor J. Bell
    • Nicolas Crouzet
    • Sebastian Zieba
    ResearchOpen Access
    Nature Astronomy
    Volume: 8, P: 879-898

  • 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

  • The resonant chain of the TRAPPIST-1 planets is dynamically fragile, as small perturbations during its lifetime would have disrupted it. N-body simulations show that the system could not have interacted with more than 0.05 Earth masses of material after its formation. Thus, any water in the planets must come from the planets’ original accretion.

    • Sean N. Raymond
    • Andre Izidoro
    • Simon L. Grimm
    Research
    Nature Astronomy
    Volume: 6, P: 80-88