Fossil Signatures of Ancient Accretion Events in the Halo

  title={Fossil Signatures of Ancient Accretion Events in the Halo},
  author={K. Johnston and L. Hernquist and M. Bolte},
  journal={The Astrophysical Journal},
The role that minor mergers have played in the formation and structure of the Milky Way is still an open question, about which there is much debate. We use numerical simulations to explore the evolution of debris from a tidally disrupted satellite, with the aim of developing a method that can be used to identify and quantify signatures of accretion in a survey of halo stars. For a Milky Way with a spherical halo, we find that debris from minor mergers can remain aligned along great circles… Expand
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Galactic Dynamics (Princeton University Press, Princeton
  • AJ, 101,
  • 1992