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Showing 1–10 of 10 results
Advanced filters: Author: Charles Beichman Clear advanced filters

  • JWST imaged three of the gas giants orbiting the star HR 8799 to study their atmospheres. The uniform enrichment of heavy elements, including sulfur, indicates that they formed like Jupiter and Saturn by accreting a lot of icy and rocky solids.

    • Jean-Baptiste Ruffio
    • Jerry W. Xuan
    • Marie Ygouf
    Research
    Nature Astronomy
    P: 1-11

  • The atmospheres of white dwarfs often contain elements heavier than helium, even though these elements would be expected to settle into the stars’ interiors; observations of the white dwarf WD 1145+017 suggest that disintegrating rocky bodies are orbiting the star, perhaps contributing heavy elements to its atmosphere.

    • Andrew Vanderburg
    • John Asher Johnson
    • Jason T. Wright
    Research
    Nature
    Volume: 526, P: 546-549

  • Methane emission from a very cool brown dwarf, perhaps arising from an aurora, has been detected in James Webb Space Telescope observations.

    • Jacqueline K. Faherty
    • Ben Burningham
    • Niall Whiteford
    ResearchOpen Access
    Nature
    Volume: 628, P: 511-514

  • JWST mid-infrared images of the nearby star Fomalhaut reveal a complex system of dusty rings and disks, created as debris from planetesimal collisions. These structures suggest the presence of a complex and probably dynamically active planetary system.

    • András Gáspár
    • Schuyler Grace Wolff
    • Geoffrey Bryden
    Research
    Nature Astronomy
    Volume: 7, P: 790-798

  • A comprehensive study of the Kepler-138 system reveals the twin nature of Kepler-138 c and d and the presence of a fourth planet. Remarkably, the warm-temperate planet Kepler-138 d is probably composed of 50% volatiles by volume, indicative of a water world, rather than a rocky world, despite its small ~1.5 R⊕ size.

    • Caroline Piaulet
    • Björn Benneke
    • Ian Wong
    Research
    Nature Astronomy
    Volume: 7, P: 206-222

  • Diet is a major factor determining the composition of gut microbiota in mammals, while host evolutionary history seems to play an unclear role. Here, Sanderset al. show that baleen whales, which prey on animals, harbour a unique gut microbiome with similarities to those of terrestrial herbivores.

    • Jon G. Sanders
    • Annabel C. Beichman
    • Peter R. Girguis
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-8

  • LTT 9779 b is Neptune-sized planet rotating around its star with a period of 0.79 days and an equilibrium temperature of 2,000 K. It is not clear how it retained its atmospheric envelope, which contains ~10% of H/He, as it should have been photoevaporated by now.

    • James S. Jenkins
    • Matías R. Díaz
    • Andrew W. Mann
    Research
    Nature Astronomy
    Volume: 4, P: 1148-1157