667 citations · 6.9k across the 171 of their papers we have counts for
5 papers · 2 filters
Widespread presence of shallow cusps in the surface-brightness profile of globular clusters
Enrico Vesperini, Michele Trenti
Surface brightness profiles of globular clusters with shallow central cusps (Sigma ~ R^v with -0.3<~ v <~ -0.05) have been associated by several recent studies with the presence of…
The fraction of globular cluster second-generation stars in the Galactic halo
Enrico Vesperini, Stephen L. W. McMillan, Francesca D'Antona +1
Many observational studies have revealed the presence of multiple stellar generations in Galactic globular clusters. These studies suggest that second-generation stars make up a si…
Abundance patterns of multiple populations in Globular Clusters: a chemical evolution model based on yields from AGB ejecta
Annibale D'Ercole, Francesca D'Antona, Paolo Ventura +2
A large number of spectroscopic studies have provided evidence of the presence of multiple populations in globular clusters by revealing patterns in the stellar chemical abundances…
Terzan 5: an alternative interpretation for the split horizontal branch
F. D'Antona, P. Ventura, V. Caloi +4
We consider the horizontal branch (HB) of the Globular Cluster Terzan 5, recently shown to be split into two parts, the fainter one (delta M_K ~ 0.3mag) having a lower metallicity…
Intermediate-Mass Black Holes in Early Globular Clusters
Enrico Vesperini, Stephen L. W. McMillan, Annibale D'Ercole +1
Spectroscopic and photometric observations show that many globular clusters host multiple stellar populations, challenging the common paradigm that globular clusters are "simple st…