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Atmospheric Composition Graph of Transit depth (%) vs Wavelength (microns). Yellow and red datapoints on a blue a cyan model. Several Methane (CH4) bumps are labled. * H,-rich with high abundance (>1%) of CH, and CO, * Non-detections of H,0, NH, and CO * Marginal evidence for DMS, potential biomarker * Evidence for Clouds/Hazes and Low stratospheric temperatures Madhusudhan 2023

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Atmospheric Composition Graph of Transit depth (%) vs Wavelength (microns). Yellow and red datapoints on a blue a cyan model. Several Methane (CH4) bumps are labled. * H,-rich with high abundance (>1%) of CH, and CO, * Non-detections of H,0, NH, and CO * Marginal evidence for DMS, potential biomarker * Evidence for Clouds/Hazes and Low stratospheric temperatures Madhusudhan 2023
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Kelly Lepo (kellylepo@astrodon.social)'s status on Wednesday, 13-Sep-2023 01:41:58 JST Kelly Lepo
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And now we move into the exoplanet part of the afternoon.
Results from Nikku Madhusudhan about exoplanet
K2-18 b. They have the first detection of methane and carbon dioxide in a habitable-zone exoplanet.
Press release: https://webbtelescope.org/contents/news-releases/2023/news-2023-139
#JWSTYearOne

In conversation about a year ago from astrodon.social permalink