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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 10.

Retrieved abundance comparisons of our most robustly detected species for two different data reductions: Eureka1 and ExoticJEDI. Our results for H2O, CH4, and NH3 as well as Teq are impervious to data reduction choices. These fits were performed with POSEIDON on the final selected model (M2.5) and the coadded data. For reference, Figure J1 shows the individual spectral contribution of each molecular species to the final model shown above.

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