The building blocks of the Milky Way halo using APOGEE and Gaia -- or -- Is the Galaxy a typical galaxy?

Abstract

We summarise recent results from analysis of APOGEE/Gaia data for stellar populations in the Galactic halo, disk, and bulge, leading to constraints on the contribution of dwarf galaxies and globular clusters to the stellar content of the Milky Way halo. Interpretation of the extant data in light of cosmological numerical simulations suggests that the Milky Way has been subject to an unusually intense accretion history at z >~ 1.5.

arXiv commentTo Appear in "Star Clusters: From the Milky Way to the Early Universe ", Proceedings of IAU Symposium No. 351, 2019, A. Bragaglia, M.B. Davies, A. Sills & E. Vesperini, eds. Four pages, no figures

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Cited by in corpus (3)

• Evidence from APOGEE for the presence of a major building block of the halo buried in the inner Galaxy
• An enquiry on the origins of N-rich stars in the inner Galaxy basedon APOGEE chemical compositions
• Lithium abundances as a tracer of AGB stars pollution in the globular cluster NGC 6752