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The Actinide-boost Star LAMOST J122216.85–063345.2: A Detailed r-process Abundance Study with Gemini-S/GHOST

  • Authors: Miji Jeong, Young Sun Lee, 영선 이, Vinicius M. Placco, Yutaka Hirai, Timothy C. Beers, Jeong-Eun Heo, Kristin Chiboucas, Emily Deibert, Roberto Gamen, Venu M. Kalari, Eder Martioli, Ruben Diaz, Manuel Gomez- Jimenez, Roque Ruiz-Carmona, Greg Burley, J. Gordon Robertson, Kathleen Labrie, Joanna Thomas-Osip

Miji Jeong et al 2026 The Astrophysical Journal 1005 .

  • Provider: AAS Journals

Caption: Figure 4.

SYN results derived for J1222 for important neutron-capture elements, from left to right and top to bottom, for Y, Zr, Ba, Nd, Gd, Sm, Er, Eu, La, and Th. Each panel shows the observed spectrum (black squares), the best-fit model (cyan), and the no-abundance model (gray). The cyan shaded regions represent the uncertainties (±0.2 dex) in the synthetic fits.

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