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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20121106T123000
DTEND;TZID=Atlantic/Canary:20121106T133000
UID:iactalks-418
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/418
CREATED:2012-11-06T12:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The SUMO project: a survey of multiple populations in globular clus
 ters 
DESCRIPTION:The SUMO project: a survey of multiple populations in globular 
 clusters \nDr. Matteo Monelli, Dr. Antonio Milone\n\nThe classical idea th
 at globular clusters are the prototypes of simple stellar populations has 
 been revolutionized in the last few years. Multiple sequences of stars hav
 e been detected in the colour-magnitude diagram of a number of clusters, m
 ostly thanks to high-precision HST photometry, and the correlation with th
 e chemical properties of different generations of stars has been demonstra
 ted. In this talk, we will first present a summary of the observational pi
 cture, and we will then introduce the SUMO project (a SUrvey of Multiple p
 Opulations). This is a long-term project, lead here at the IAC and aimed a
 t detecting and characterizing multiple populations in a large sample of g
 lobular clusters. We will review the scope, the observing and reduction st
 rategy, and the first results. So far, data for more than 30 clusters have
  been secured, using the wide field imagers available at the 2.2m ESO/MPI 
 and INT telescope, thus covering both hemispheres. We will present a new p
 hotometric index which turned out to be very effective in detecting multip
 le RGBs in nearly all the clusters analyzed so far. The connection with th
 e chemical content of the different populations will be also discussed.
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