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Articles tagged: exoplanet atmospheres

  • exoplanet atmospheres, Gliese 3470 b, Hubble Space Telescope, spectroscopy, Spitzer Space Telescope 03 July 2019 New study reveals detailed exoplanet atmosphere

    ...known as GJ 3470 b), is a sub-Neptune/Super-Earth hybrid exoplanet weighing in at 12.6 Earth masses. It is more massive than ...—but has managed to accrete the primordial hydrogen/helium atmosphere that is largely "unpolluted" by heavier elements," said...

    • exoplanet atmospheres
    • Gliese 3470 b
    • Hubble Space Telescope
    • spectroscopy
    • Spitzer Space Telescope
  • exoplanet atmospheres, exoplanets, mini-Neptunes, super-Jupiters, water worlds 11 December 2019 Water abundance lower than expected on exoplanets

    ... computational models and statistical methods, the team were able to obtain estimates of the chemical abundances in the exoplanet atmospheres across the sample. Their results showed that six planets had an abundance of sodium (Na) and another six...

    • exoplanet atmospheres
    • exoplanets
    • mini-Neptunes
    • super-Jupiters
    • water worlds
  • Atmospheric Remote‐sensing Infrared Exoplanet Large‐survey (ARIEL) mission, ESA, ESA’s Cosmic Vision, exoplanet, exoplanet atmospheres 23 March 2018 ESA selects ARIEL to look closely at exoplanets

    ... scan the skies during its 4-year mission to observe 1000 exoplanets orbiting distant stars, to make the first large-scale survey of the chemistry of exoplanet atmospheres. Data collected from the mission should help enable scientists answer...

    • Atmospheric Remote‐sensing Infrared Exoplanet Large‐survey (ARIEL) mission
    • ESA
    • ESA’s Cosmic Vision
    • exoplanet
    • exoplanet atmospheres
  • 51 Eri b, 51 Eribanni, exoplanet atmospheres, S8, sulphur chemistry 26 April 2016 Sulphur chemistry could be the key to clouds on many exoplanets

    ... with air pollution from vehicular emission (think Los Angeles, Dehli and Beijing). Past studies of exoplanet atmosphere’s have concentrated on hydrocarbons and nitriles as the main compound in photochemical hazes, especially on warm sub-Neptune...

    • 51 Eri b
    • 51 Eribanni
    • exoplanet atmospheres
    • S8
    • sulphur chemistry
  • exoplanet atmospheres, HAT-P-11 b, HAT-P-26 b, late gas disks, TRAPPIST-1 06 April 2020 Planets can form second atmospheres rich in CO, new study shows

    ... disk. In disks that were slightly more massive, enough carbon dioxide (CO) could be accreted to give an exoplanet sub-Neptune-like atmospheric pressures. “We show the effect of gas accretion on a planet’s pressure and bulk density over time and...

    • exoplanet atmospheres
    • HAT-P-11 b
    • HAT-P-26 b
    • late gas disks
    • TRAPPIST-1
  • exoplanet, exoplanet atmospheres, GRAVITY instrument on ESO’s Very Large Telescope Interferometer (VLTI), HR8799e, optical interferometry 27 March 2019 Storm-plagued exoplanet revealed in detail with GRAVITY

    ... particles, which disaggregate and rain down into the interior. This paints a picture of a dynamic atmosphere of a giant exoplanet at birth, undergoing complex physical and chemical processes.” It is thanks to GRAVITY’s superb optical interferometry...

    • exoplanet
    • exoplanet atmospheres
    • GRAVITY instrument on ESO’s Very Large Telescope Interferometer (VLTI)
    • HR8799e
    • optical interferometry
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