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The Diversity of Cold Worlds: Age and Characterization of the Exoplanet COCONUTS-2 b

  • Authors: Rocio Kiman, Charles A. Beichman, Azul Ruiz Diaz, Jacqueline K. Faherty, Brianna Lacy, Genaro Suárez, Federico Marocco, J. Davy Kirkpatrick, Jonathan Gagné, Jessica Copeland, Ben Burningham, Niall Whiteford, Melanie J. Rowland, Daniella C. Bardalez Gagliuffi, Johanna M. Vos, Adam C. Schneider, Eileen C. Gonzales, Sherelyn Alejandro Merchan, Austin Rothermich, Richard Smart, Edgardo Costa, Rene A. Mendez

Rocio Kiman et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 1.

Top panel shows the JWST spectrum of COCONUTS-2 b in the filter G395H with horizontal lines indicating the molecular features which are recognizable in the spectrum. We also included the uncertainty in the flux in light gray. Bottom panel shows the opacities for each identified molecule which we obtained from the DACE database (R. J. Barber et al. 2006; L. S. Rothman et al. 2010; S. N. Yurchenko et al. 2011; A. A. A. Azzam et al. 2016; R. J. Hargreaves et al. 2020; S. L. Grimm et al. 2021; J. Tennyson et al. 2024). See Section 5 for a detailed description and discussion.

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