Proc. IAU volume 13, issue S334, P29-33 2017 DOI: 10.1017/s1743921317009279 View full text
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Baslio Santiago, Elmer Luque, Adriano Pieres, Anna Bárbara Queiroz

Abstract: AbstractThe stellar spheroidal components of the Milky-Way contain the oldest and most metal poor of its stars. Inevitably the processes governing the early stages of Galaxy evolution are imprinted upon them. According to the currently favoured hierarchical bottom-up scenario of galaxy formation, these components, specially the Galactic halo, are the repository of most of the mass built up from accretion events in those early stages. These events are still going on today, as attested by the long stellar stream…

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