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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 5.

The best-fit chemical equilibrium models to our coadded data performed with three different retrieval suites. For all chemical equilibrium fits, the models produced poor fits to several features on the spectrum, namely near 3 μm and between 4 and 5 μm region. For the 4.3 micron region, the differences between features are due to a combination of differences in the retrieval framework (namely prior constraints) and chemical networks used (FastChem vs. GGChem) for each retrieval suite.

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