Insufficient evidence for DMS and DMDS in the atmosphere of K2-18 b - From a joint analysis of JWST NIRISS, NIRSpec, and MIRI observations

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Table 1

Summary of model comparison tests using full transmission spectrum (NIRISS+NIRSpec+MIRI).

Model	Dataset	∆ ln Z
With DMS/DMDS/C₂H₆	`JExoRES`	0.00
With C₂H₆ (no DMS/DMDS)	`JExoRES`	+0.61
With DMS/DMDS (no C₂H₆)	`JExoRES`	−0.36
Baseline	`JExoRES`	−0.05
With DMS/DMDS/C₂H₆	`exoTEDRF`	0.00
With C₂H₆ (no DMS/DMDS)	`exoTEDRF`	−2.11
With DMS/DMDS (no C₂H₆)	`exoTEDRF`	+0.37
Baseline	`exoTEDRF`	−2.26
With DMS/DMDS/C₂H₆	`exoTEDRF+SPARTA`	0.00
With C₂H₆ (no DMS/DMDS)	`exoTEDRF+SPARTA`	−2.18
With DMS/DMDS (no C₂H₆)	`exoTEDRF+SPARTA`	+0.23
Baseline	`exoTEDRF+SPARTA`	−2.09

Notes. The individual ln Z values for each model and the abundances are reported in Table C.1.

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