5 papers
Ancient relic moderately metal-rich bulge cluster Tonantzintla 2
Sergio Ortolani, Stefano O. Souza, Domenico Nardiello +6
The assembly history of the Galactic bulge is intimately tied to the formation of the proto-Milky Way, yet reconstructing this early phase is difficult because mergers and secular…
The Spheroidal Bulge of the Milky Way: Chemodynamically Distinct from the Inner-Thick Disc and Bar
Samir Nepal, Cristina Chiappini, Angeles Pérez-Villegas +7
Studying the composition and origin of the inner region of our Galaxy -- the "Galactic bulge" -- is crucial for understanding the formation and evolution of the Milky Way and other…
The VISCACHA Survey: XIII. The extended main-sequence turn-off in intermediate-age low-mass clusters
Stefano Souza, Angeles Pérez-Villegas, Bruno Dias +16
The extended main-sequence turn-off (eMSTO) is a well-known feature observed in young and intermediate-age star clusters, characterized by a significant broadening of the main-sequ…
Revisited parameters for the twin bulge globular clusters NGC 6528 and NGC 6553
S. Ortolani, S. O. Souza, D. Nardiello +2
NGC 6528 and NGC 6553 are among the most metal-rich globular clusters in the Galactic bulge. They represent the upper end of the chemical enrichment in the Galaxy, and can inform o…
Tracing back a second-generation star stripped from Terzan 5 by the Galactic bar
Stefano O. Souza, Marica Valentini, Cristina Chiappini +6
The Galactic bulge hosts the Milky Way's oldest stars, possibly coming from disrupted globular clusters (GCs) or the bulge's primordial building blocks, making these stars witnesse…