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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 4.

[Fe/H] and [M/H] measurements for the candidate members of CUMA collected from the APOGEE DR17, GALAH DR3, RAVE DR6, and LAMOST DR7 catalogs. We included in a black horizontal line, the value of [Fe/H] for the UMA cluster (A. M. Boesgaard et al. 1988). We also included as a vertical line, the value of [Fe/H] for COCONUTS-2 A and [M/H] for COCONUTS-2 b (See Section 5.2). The dotted vertical lines show the uncertainty in these two values. These measurements agree with the distribution of the moving group within the uncertainty, supporting the membership of COCONUTS-2 to the group.

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