Missing Mass in Collisional Debris from Galaxies

@article{Bournaud2007MissingMI,
  title={Missing Mass in Collisional Debris from Galaxies},
  author={Fr{\'e}d{\'e}ric Bournaud and P.-A. Duc and Elias Brinks and M{\'e}d{\'e}ric Boquien and Philippe Amram and Ute Lisenfeld and B{\"a}rbel S. Koribalski and Fabian Walter and Vassilis Charmandaris},
  journal={Science},
  year={2007},
  volume={316},
  pages={1166 - 1169}
}
Recycled dwarf galaxies can form in the collisional debris of massive galaxies. Theoretical models predict that, contrary to classical galaxies, these recycled galaxies should be free of nonbaryonic dark matter. By analyzing the observed gas kinematics of such recycled galaxies with the help of a numerical model, we demonstrate that they do contain a massive dark component amounting to about twice the visible matter. Staying within the standard cosmological framework, this result most likely… Expand

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