Formation of ω Centauri from an ancient nucleated dwarf galaxy in the young Galactic disc

  title={Formation of $\omega$ Centauri from an ancient nucleated dwarf galaxy in the young Galactic disc},
  author={Kenji Bekki and Kenneth C. Freeman},
  journal={Monthly Notices of the Royal Astronomical Society},
  • K. Bekki, K. Freeman
  • Published 14 October 2003
  • Physics
  • Monthly Notices of the Royal Astronomical Society
We first present a self-consistent dynamical model in which ω Cen is formed from an ancient nucleated dwarf galaxy merging with the first generation of the Galactic thin disc in a retrograde manner with respect to the Galactic rotation. Our numerical simulations demonstrate that during merging between the Galaxy and the ω Cen host dwarf with M B ≃ - 14 mag and its nucleus mass of 10 7 M O ., the outer stellar envelope of the dwarf is nearly completely stripped, whereas the central nucleus can… 

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