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A Systematic Search for Trace Molecules in the Atmosphere of Exoplanet K2-18 b

  • Authors: Lorenzo Pica-Ciamarra, Nikku Madhusudhan, Gregory J. Cooke, Savvas Constantinou, Martin Binet

Lorenzo Pica-Ciamarra et al 2026 The Astrophysical Journal Letters 1002 .

  • Provider: AAS Journals

Caption: Figure 5.

Median retrieved spectrum with POSEIDON (blue line) and 1σ and 2σ uncertainties (shaded regions) in the NIR for a model including six standard CNO species (CO2, CH4, NH3, CO, HCN, and H2O) and DMS, with one offset. The contributions of the various absorbers are shown in Figure 5 of M23 and Figure 3 of R. Hu et al. (2025)

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