2 papers
astro-ph.SR2026
Carbon measurements in two ultra-faint dwarf galaxies: Grus II and Tucana IV
Valentina Verdiani, Ása Skúladóttir, Romain Lucchesi +7
The ultra-faint dwarf galaxies (UFDs) are some of the oldest and most metal-poor environments in the Local Group. In particular, they are predicted to host the first stars (only H…
astro-ph.SR2026
MgAl burning chain in M 54: the globular cluster-like properties of a nuclear star cluster
D. A. Alvarez Garay, A. Mucciarelli, P. Ventura +2
In this study, we present the chemical abundances of Fe, Mg, Al, Si, and K for a sample of 233 likely member stars of M 54. All the stars were observed with the FLAMES high-resolut…