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Atmospheric parameters and chemical abundances of young stars with APOGEE. I. Orion star-forming region
Ricardo L\'opez-Valdivia, Luc\'ia Adame, Carlos G. Rom\'an-Z\'u\~niga, Jes\'us Hern\'andez, Edilberto S\'anchez, Itzarel Herrn\'andez-Aburto, Jos\'e G. Fern\'andez-Trincado, Eduardo Zagala Lagunas, Leticia Carigi, J. E. M\'endez-Delgado, Marina Kounkel, Javier Serna, Richard R. Lane, Keivan G. Stassun, Sandro Villanova, Jinyoung Serena Kim,…
Atmospheric parameters and chemical abundances of young stars with APOGEE. I. Orion star-forming region
We derive atmospheric parameters and chemical abundances in young G-, K-, and M-type stars (temperatures between 6500 and 3100 K) using infrared APOGEE-2 spectra. Atmospheric parameters were determined for 548 young stars in the Orion complex (Orion A, B, OB1, and $λ$ Ori) using the TONALLI code. For 340 slow rotators v sini $\leq$ 30 km s$^{-1}$), we derived C, Mg, Si, K, Ti, and Fe abundances using 19 atomic lines, MARCS model atmospheres, and BACCHUS. To mitigate the impact of circumstellar…
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