Detailed Chemical Abundances of Stars in the Outskirts of the Tucana II Ultrafaint Dwarf Galaxy

We present chemical abundances and velocities of five stars between 0.3 and 1.1 kpc from the center of the Tucana II ultrafaint dwarf galaxy (UFD) from high-resolution Magellan/MIKE spectroscopy. We find that every star is deficient in metals (−3.6 < [Fe/H] < −1.9) and in neutron-capture elements as...

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Detalhes bibliográficos

Principais autores:	Anirudh Chiti, Anna Frebel, Alexander P. Ji, Mohammad K. Mardini, Xiaowei Ou, Joshua D. Simon, Helmut Jerjen, Dongwon Kim, John E. Norris
Formato:	Artigo
Idioma:	Inglês
Publicado em:	IOP Publishing 2023-01-01
coleção:	The Astronomical Journal
Assuntos:	Dwarf galaxies Local Group Population II stars
Acesso em linha:	https://doi.org/10.3847/1538-3881/aca416
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