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Showing 1–3 of 3 results
Advanced filters: Author: Isaac Malsky Clear advanced filters

  • Exoplanets with radii between 1.4 and 2.5 R⊕ may have atmospheres strongly enhanced in helium after a few billion years, due to the preferential loss of hydrogen over helium via photoevaporation. If observed, this phenomenon could demonstrate the importance of photoevaporation in shaping the radius valley.

    • Isaac Malsky
    • Leslie Rogers
    • Nadejda Marounina
    Research
    Nature Astronomy
    Volume: 7, P: 57-66

  • 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

  • A spectroscopic thermal phase curve of GJ 1214b obtained with the JWST in the mid-infrared is reported and a planet with a high metallicity atmosphere blanketed by thick and reflective clouds or haze is found.

    • Eliza M.-R. Kempton
    • Michael Zhang
    • Peter McGill
    Research
    Nature
    Volume: 620, P: 67-71