Baeza, IanFernández-Trincado, José G.Villanova, SandroGeisler, DougMinniti, DanteGarro, Elisa R.Barbuy, BeatrizBeers, Timothy C.Lane, Richard R.2024-04-262024-04-262022-06-01Astronomy and Astrophysics, Volume 662, 1 June 2022, Article number A470004-6361https://repositorio.unab.cl/handle/ria/56424Indexación: Scopus.We present detailed elemental abundances and radial velocities of stars in the metal-poor globular cluster (GC) NGC 2298, based on near-infrared high-resolution (R 22-500) spectra of 12 members obtained during the second phase of the Apache Point Observatory Galactic Evolution Experiment (APOGEE-2) at Las Campanas Observatory as part of the seventeenth Data Release (DR 17) of the Sloan Digital Sky Survey IV (SDSS-IV). We employed the Brussels Automatic Code for Characterizing High accuracy Spectra (BACCHUS) software to investigate abundances for a variety of species including α elements (Mg, Si, and Ca), the odd-Z element Al, and iron-peak elements (Fe and Ni) located in the innermost regions of NGC 2298. We find a mean and median metallicity [Fe/H 1.76 and 1.75, respectively, with a star-to-star spread of 0.14 dex, which is compatible with the internal measurement errors. Thus, we find no evidence for an intrinsic [Fe/H] abundance spread in NGC 2298. The typical α-element enrichment in NGC 2298 is overabundant relative to the Sun, and it follows the trend of other metal-poor GCs. We confirm the existence of an Al-enhanced population in this cluster, which is clearly anti-correlated with Mg, indicating the prevalence of the multiple-population phenomenon in NGC 2298. © ESO 2022enGlobular clusters: individual: NGC 2298Stars: abundancesStars: chemically peculiarTechniques: spectroscopicArtículoCC BY 4.0 DEED Attribution 4.0 International10.1051/0004-6361/202243475