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

Published online by Cambridge University Press:  11 March 2020

Ricardo P. Schiavon Open the ORCID record for Ricardo P. Schiavon [Opens in a new window] ,
J. Ted Mackereth ,
Joel Pfeffer ,
Rob A. Crain  and
Jo Bovy
Ricardo P. Schiavon
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Liverpool, L3 5RF, UK email: R.P.Schiavon@ljmu.ac.uk
J. Ted Mackereth
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Liverpool, L3 5RF, UK email: R.P.Schiavon@ljmu.ac.uk School of Physics and Astronomy, University of Birmingham, Birmingham, UK
Joel Pfeffer
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Liverpool, L3 5RF, UK email: R.P.Schiavon@ljmu.ac.uk
Rob A. Crain
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Liverpool, L3 5RF, UK email: R.P.Schiavon@ljmu.ac.uk
Jo Bovy
Affiliation:
Dept. of Astronomy and Astrophysics, University of Toronto, Toronto, Canada
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Abstract

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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. Intepretation 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.

Keywords

Galaxy: haloGalaxy: abundancesGalaxy: stellar contentGalaxy: globular clusters: generalGalaxy: formationGalaxy: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S351: Star Clusters: From the Milky Way to the Early Universe , May 2019 , pp. 170 - 173
Copyright
© International Astronomical Union 2020

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