Title: A wide angle view of the Sgr dSph chemistry

Abstract:
The Sagittarius dwarf Spheroidal galaxy (Sgr dSph) is the most striking example of an ongoing 
tidal disruption event in the Milky Way. The Sgr dSph is also excepitonal among the local group 
dSph for its very high (estimated) mass and unusually efficient chemical evolution, which allows 
it to sport stars between [Fe/H]~-3 and solar metallicity, at least five associated globular 
clusters, and a chemical signature that remains Halo-like to metallicities higher than any other 
dSph, only to become highly characteristic and recognizable above [Fe/H]~-1. All these 
characteristics make the Sgr dSph a possible relic of the kind of massive "building blocks", a 
small number of which is currently believed to have contributed the bulk of the Halo hierarchical 
buildup. 
Due to its vast extension in the sky, however, only the very core of Sgr dSph, its associated 
globular clusters, and a handful of stars in the stream have been studied in detail chemically. 

We have obtained GIRAFFE and UVES spectra of more than 200 Sgr dSph giants across 8 
fields spanning 6x3 degrees along the Sgr dSph main body major and minor axis. I will present 
their detailed abundance analysis obtained by means of the MyGIsFOS automatic analysis 
code, allowing to appreciate the full extent of the Sgr dSph metallicity distribution function as 
well as explore composition gradients across most of the extent of the galaxy main body.