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Seminars at FGG

There are surveys, and then there are surveys. Small and large, we each have a role to play.

Speaker: Angela Bragaglia (INAF - OA Bologna)

Date and time: 2016-01-11 11:30

The reliable identification of field halo stars born in globular clusters (GCs) is important to understand the actual contribution of GC stars to the Milky Way halo. Depending on the GC formation mechanism, the contribution may be minimal, a mere few per cent, or very important, with more than 50\% (see e.g. the review in Gratton et al. 2012). I will discuss the possibility of finding stars lost by GCs by chemical tagging, i.e. using the peculiar chemistry found in GCs focussing on what has been done with "private" data and mini-surveys (e.g., the FLAMES survey of Galactic GCs done by our group, see Carretta et al. 2009a,b; and Bragaglia et al. 2015 for the last results) and what can be obtained from large scale observational campaigns, such as the public high-resolution survey Gaia-ESO or future surveys.

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