Gaia results for star clusters and dwarf galaxies in the Milky Way

Davide Massari

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The second data release of the Gaia mission coupled with ground-based spectroscopic observations has allowed the determination of the orbital parameters for almost all of the Galactic globular clusters, as well as for the known dwarf spheroidal galaxies orbiting the Milky Way. Moreover, it has led to the discovery of dwarf galaxies that were accreted by the Galaxy long ago and that are now completely disrupted. By exploiting their dynamics in combination with the globular clusters age-metallicity relation, we investigated the clusters-to-dwarfs connection. We found that about 60 globulars likely formed in situ, and associated those that were accreted to the dwarf galaxy progenitor they likely formed in.
Original languageEnglish
Title of host publicationStar Clusters
Subtitle of host publicationFrom the Milky Way to the Early Universe
EditorsA. Bragaglia, M. Davies, A. Sills , E. Vesperini,
PublisherCambridge University Press
Number of pages6
Publication statusPublished - 1-Jan-2020

Publication series

NameProceedings of the International Astronomical Union
PublisherInternational Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • Galaxy: globular clusters: general
  • Galaxy: kinematics and dynamics
  • Galaxy: evolution

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