Spectra data for K2-18a highlighting regions that indicate dimethyl sulfide DMS and dimethyl disulfide DMDS.

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   AkaSci 🛰️ (akasci@fosstodon.org)'s status on Thursday, 17-Apr-2025 21:34:40 JST AkaSci 🛰️

   in reply to

   The preprint paper (thanks @obot50549535 for posting the link) indicates that the new spectra data for K2-18b came from the JWST MIRI instrument.

   The authors report "new evidence for DMS and/or DMDS in the atmosphere of K2-18b at 3-σ significance, with high abundance of at least one of the two molecules."

   They indicate that more observations are needed to increase the robustness of the findings.

   3-σ is low.

   The plots below are self-explanatory.

   https://arxiv.org/abs/2504.12267
   5/n