A faint extended cluster in the outskirts of NGC 5128: evidence of a low mass accretion*

@article{Mouhcine2010AFE,
  title={A faint extended cluster in the outskirts of NGC 5128: evidence of a low mass accretion*},
  author={Mustapha Mouhcine and William E. Harris and Rodrigo A. Ibata and Marina Rejkuba},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2010},
  volume={404},
  pages={1157-1164}
}
We report the discovery of an extended globular cluster in a halo field in Centaurus A (NGC 5128), situated ~38 kpc from the centre of that galaxy, imaged with the Advanced Camera for Surveys on board the Hubble Space Telescope. At the distance of the galaxy, the half-light radius of the cluster is r h ~7 pc, placing it among the largest globular clusters known. The faint absolute magnitude of the star cluster, M v,o = -5.2, and its large size render this object somewhat different from the… Expand

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