MULTIPLE POPULATION IN GLOBULAR CLUSTERS AND THE STRANGE CASE OF NGC 2419

by Marcella Di Criscienzo

Monday 22 Apr 2013, 16:00 → 17:00 Europe/Rome

Aula Conversi (Dipartimento di Fisica - Ed. G. Marconi)

Our view of globular clusters has fundamentally changed in the last decade. Thanks to the large amount of spectroscopic and photometric data assembled recently, the assumption that all globular clusters contain a simple mono-metallic stellar population has been modified. I will present the latest results on the search and interpretation of multiple populations in GCs emphasizing some of the main hints, constraints and difficulties we currently have in trying to understand how globular clusters formed, along with their multiple stellar generations, an issue that must be regarded as intimately connected to the formation process itself. I will give particular attention to the peculiar clusters NGC 2419 were recently we have found a large and extreme second generation in a currently undisturbed cluster.