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Chemical and dynamical oddballs in the Galactic halo — clues to the puzzle of the Milky Way

Andreas Koch (Universität Heidelberg)

Évènements associés

  • Le lundi 28 novembre 2011 de 11:00 à 12:00

While recent sky surveys have uncovered large numbers of ever fainter Milky Way satellites, their classification as star clusters, low-luminosity galaxies, or tidal overdensities remains often unclear. Likewise, their contributions to the build-up of the halo is yet debated. In this talk I will discuss the current knowledge of the stellar populations and chemo-dynamics in these puzzling satellites, with a particular focus on some peculiar chemical abundance ratios some dwarf spheroidal galaxies and globular clusters, out to the outskirts of the Galactic halo, which also hold further clues to the contribution of these systems to the halo assembly.