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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20210121T103000
DTEND;TZID=Atlantic/Canary:20210121T113000
UID:iactalks-1434
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1434
CREATED:2021-01-21T10:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Multiple stellar populations in globular clusters: Properties, orig
 in, unsolved questions
DESCRIPTION:Multiple stellar populations in globular clusters: Properties, 
 origin, unsolved questions\nProf. Corinne Charbonnel\n\nGlobular clusters 
 (GCs) are fascinating objects nearly as old as the Universe that provide i
 nsight on a large variety of astrophysical and cosmological processes. How
 ever, their formation and their early and long-term evolution are far from
  being understood. In particular, the classical paradigm describing GCs as
  large systems of coeval stars formed out of chemically homogeneous materi
 al has been definitively swept away by recent high-precision spectroscopic
  and deep photometric observations. These data have provided undisputed ev
 idence that GCs host multiple stellar populations, with very peculiar chem
 ical properties. In this talk, I will review the properties of these multi
 ple populations, before presenting the different scenarios that have been 
 proposed to describe their formation. I will focus on the (many) current t
 heoretical issues and open questions. 
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