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Showing 1–8 of 8 results
Advanced filters: Author: Keshav Aggarwal Clear advanced filters

  • 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

  • The medium-resolution transmission spectrum of the exoplanet WASP-39b, described using observations from the Near Infrared Spectrograph G395H grating aboard JWST, shows significant absorption from CO2 and H2O and detection of SO2.

    • Lili Alderson
    • Hannah R. Wakeford
    • Xi Zhang
    ResearchOpen Access
    Nature
    Volume: 614, P: 664-669

  • Observations from the JWST MIRI/LRS show the detection of SO2 spectral features in the 5–12-μm transmission spectrum of the hot, Saturn-mass exoplanet WASP-39b, suggesting that photochemistry is a key process in high-temperature exoplanet atmospheres.

    • Diana Powell
    • Adina D. Feinstein
    • Sergei N. Yurchenko
    ResearchOpen Access
    Nature
    Volume: 626, P: 979-983

  • The dayside thermal emission spectrum and brightness temperature map of the ultra-hot Jupiter WASP-18b obtained from the NIRISS instrument on the JWST showed water emission features, an atmosphere consistent with solar metallicity, as well as a steep and symmetrical decrease in temperature towards the nightside.

    • Louis-Philippe Coulombe
    • Björn Benneke
    • Peter J. Wheatley
    ResearchOpen Access
    Nature
    Volume: 620, P: 292-298

  • 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