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Frieman, J. Garc\\'ia-Bellido, J. L. Marshall, J. Mena-Fern\\'andez, K. B. Webber, K. Honscheid, K. Kuehn, L. N. da Costa, M. Aguena, M. E. S. Pereira, M. Smith, N. Weaverdyck, O. Alves, P. Doel, R. A. Gruendl, R. L. C. Ogando, R. Miquel, S. R. Hinton, S. S. Allam, T. T. Hansen","submitted_at":"2023-10-18T16:33:55Z","abstract_excerpt":"We present a detailed chemical abundance analysis of the brightest star in the ultra-faint dwarf (UFD) galaxy candidate Cetus II from high-resolution Magellan/MIKE spectra. For this star, DES J011740.53-173053, abundances or upper limits of 18 elements from Carbon to Europium are derived. Its chemical abundances generally follow those of other UFD galaxy stars, with a slight enhancement of the alpha-elements (Mg, Si, and Ca) and low neutron-capture element (Sr, Ba, Eu) abundances supporting the classification of Cetus II as a likely UFD. 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