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GEMS JWST: Hold on to Your HATS(-6 b), a Subsolar-metallicity Giant Planet with Water, Methane, and Ammonia in its Atmosphere

  • Authors: Giannina Guzmán Caloca, Caleb I. Cañas, Nicole L. Wallack, Erin M. May, Shang-Min Tsai, Simon Müller, Ravit Helled, Shubham Kanodia, Jacob Lustig-Yaeger, Knicole D. Colón, Ian Czekala, Megan Delamer, Peter Gao, Te Han, Jessica Libby-Roberts, Suvrath Mahadevan, Anjali A. A. Piette, Guđmundur Stefánsson, Kevin B. Stevenson

Giannina Guzmán Caloca et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 6.

The retrieved posteriors for our clear-atmosphere chemical equilibrium retrievals with three different retrieval suites. The captions at the top and the vertical dashed lines reflect the 16th, 50th, and 84th percentiles from the TauREx retrievals. By default, TauREx reports the planetary radius at the bottom of the atmosphere (103 bar) while POSEIDON and PLATON report the radius at 1 bar, which is why the distributions do not overlap. The corresponding best-fit models are shown in Figure 5.

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