Enrichment of the Galactic disc with neutron capture elements: Sr

The enrichment history of heavy neutron-capture elements in the Milky Way disc provides fundamental information about the chemical evolution of our Galaxy and the stellar sources that made those elements. In this work we give new observational data for Sr, the element at the first neutron-shell closure beyond iron, N = 50, based on the analysis of high-resolution spectra of 276 Galactic disc stars...