ω Centauri: The Population Puzzle Goes Deeper

@article{Bedin2004CT,
  title={ω Centauri: The Population Puzzle Goes Deeper},
  author={L. Bedin and G. Piotto and J. Anderson and S. Cassisi and I. King and Y. Momany and G. B. D. D. Astronomia and U. Padova and I. S. O. Physics and Astronomy and R. University and Usa Osservatorio Astronomico Collurania and Italy Astronomy Department and U. Washington and Usa},
  journal={The Astrophysical Journal},
  year={2004},
  volume={605}
}
We present Hubble Space Telescope observations that show a bifurcation of colors in the middle main sequence of the globular cluster ω Centauri. We see this in three different fields, observed with different cameras and filters. We also present high-precision photometry of a central Advanced Camera for Surveys field, which shows a number of main-sequence turnoffs and subgiant branches. The double main sequence, the multiple turnoffs and subgiant branches, and other population sequences… Expand
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