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While enormous progresses have been made towards understanding of the cosmic production of low-Z (Z<30) elements, much less is known about the detailed Galactic evolution and formation sites of elements beyond Fe (Z>30), which are formed by captures of neutrons on seed nuclei. This situation is rapidly changing thanks to the recent advent of many massive stellar spectroscopic surveys that are mapping large sample of stars in the Galaxy with high-quality spectra that allow robust measurement of abundances of neutron-capture elements. In this talk, I will introduce our recent work in which we use observed abundances in Galactic populations from Gaia-ESO survey to constrain the formation and origins of neutron-capture elements and their Galactic production cites. |
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