Globular clusters (GCs) exhibit star-to-star variations in specific elements (eg, He, C, N, O,
Na, Al) that bear the hallmark of high-temperature H-burning. These abundance variations …

We review the current knowledge about nuclear star clusters (NSCs), the spectacularly
dense and massive assemblies of stars found at the centers of most galaxies. Recent …

We review the multiple population (MP) phenomenon of globular clusters (GCs): ie, the
evidence that GCs typically host groups of stars with different elemental abundances and/or …

We use high-precision photometry of red-giant-branch (RGB) stars in 57 Galactic globular
clusters (GCs), mostly from the 'Hubble Space Telescope (HST) UV Legacy Survey of …

Globular clusters are large and dense agglomerate of stars. At variance with smaller clusters
of stars, they exhibit signs of some chemical evolution. At least for this reason, they are …

Star clusters are fundamental units of stellar feedback and unique tracers of their host
galactic properties. In this review, we will first focus on their constituents, ie detailed insight …

We have determined the masses and mass-to-light ratios of 50 Galactic globular clusters by
comparing their velocity dispersion and surface brightness profiles against a large grid of …

We present a new scheme for the classification of the in-situ and accreted globular clusters
(GCs). The scheme uses total energy E and z-component of the orbital angular momentum …

We explain the multiple populations recently found in the 'prototype'globular cluster (GC)
NGC 2808 in the framework of the asymptotic giant branch (AGB) scenario. The chemistry of …

The 'chromosome map'diagram (ChM) proved a successful tool to identify and characterize
multiple populations (MPs) in 59 Galactic globular clusters (GCs). Here, we construct ChMs …