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#1623 : https://www.ca-se-passe-la-haut.fr/2024/02/k2-18b-le-methane-peut-etre-explique.html

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En septembre dernier, je vous relatais un étude qui s'intéressait à l'exoplanète K2-18b qui posséderait des caractéristiques très intéressantes, à la fois aqueuses et hydrogénées avec la détection d'une trace de sulfure de diméthyle, une molécule produite par le vivant sur Terre. Des simulations de la chimie complexe dans l'environnement de K2-18b viennent d'être effectuées et les conclusions sont moins optimistes... L'étude est parue dans The Astrophysical Review Letters.
https://www.ca-se-passe-la-haut.fr/2024/02/k2-18b-le-methane-peut-etre-explique.html

Source

JWST Observations of K2-18b Can Be Explained by a Gas-rich Mini-Neptune with No Habitable Surface
Nicholas F. Wogan et al.
The Astrophysical Journal Letters, Volume 963, Number 1 (20 february 2024)
https://doi.org/10.3847/2041-8213/ad2616

  continue reading

1700 episoade

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Manage episode 403166074 series 1296652
Content provided by Eric Simon. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Eric Simon or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ro.player.fm/legal.

En septembre dernier, je vous relatais un étude qui s'intéressait à l'exoplanète K2-18b qui posséderait des caractéristiques très intéressantes, à la fois aqueuses et hydrogénées avec la détection d'une trace de sulfure de diméthyle, une molécule produite par le vivant sur Terre. Des simulations de la chimie complexe dans l'environnement de K2-18b viennent d'être effectuées et les conclusions sont moins optimistes... L'étude est parue dans The Astrophysical Review Letters.
https://www.ca-se-passe-la-haut.fr/2024/02/k2-18b-le-methane-peut-etre-explique.html

Source

JWST Observations of K2-18b Can Be Explained by a Gas-rich Mini-Neptune with No Habitable Surface
Nicholas F. Wogan et al.
The Astrophysical Journal Letters, Volume 963, Number 1 (20 february 2024)
https://doi.org/10.3847/2041-8213/ad2616

  continue reading

1700 episoade

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