230 citations · 398 across the 15 of their papers we have counts for
6 papers · 1 filter
The discovery of a Li-Na-rich giant star in Omega Centauri: formed from the pure ejecta of super-AGB stars?
A. Mucciarelli, L. Monaco, P. Bonifacio +3
We report the discovery of two Li-rich giant stars (fainter than the red giant branch bump) in the stellar system Omega Centauri using GIRAFFE-FLAMES spectra. These two stars have…
TOPoS V: Abundance ratios in a sample of very metal-poor turn-off stars
P. François, E. Caffau, P. Bonifacio +12
Extremely metal-poor stars are keys to understand the early evolution of our Galaxy. The ESO large programme TOPoS has been tailored to analyse a new set of metal-poor turn-off sta…
Lithium abundance in lower red giant branch stars of Omega Centauri
A. Mucciarelli, M. Salaris, L. Monaco +3
We present Li, Na, Al and Fe abundances of 199 lower red giant branch stars members of the stellar system Omega Centauri, using high-resolution spectra acquired with FLAMES at the…
The Gaia-ESO Survey: the N/O abundance ratio in the Milky Way
L. Magrini, F. Vincenzo, S. Randich +31
The abundance ratio N/O is a useful tool to study the interplay of galactic processes, e.g. star formation efficiency, time-scale of infall and outflow loading factor We aim to tra…
Chemical abundance analysis of red giant branch stars in the globular cluster E3
L. Monaco, S. Villanova, G. Carraro +2
Context. Globular clusters are known to host multiple stellar populations, which are a signature of their formation process. The globular cluster E3 is one of the few low-mass glob…
Investigation of a sample of carbon-enhanced metal-poor stars observed with FORS and GMOS
E. Caffau, A. J. Gallagher, P. Bonifacio +5
Carbon-enhanced metal-poor (CEMP) stars represent a sizeable fraction of all known metal-poor stars in the Galaxy. Their formation and composition remains a significant topic of in…