NO EXCESS OF RR LYRAE STARS IN THE CANIS MAJOR OVERDENSITY

@article{Mateu2009NOEO,
  title={NO EXCESS OF RR LYRAE STARS IN THE CANIS MAJOR OVERDENSITY},
  author={C. Mateu and A. K. Vivas and R. Zinn and Lissa Miller and C. Abad},
  journal={The Astronomical Journal},
  year={2009},
  volume={137},
  pages={4412-4423}
}
Our multi-epoch survey of ~20 deg2 of the Canis Major (CMa) overdensity has detected only 10 RR Lyrae stars (RRLS). We show that this number is consistent with the number expected from the Galactic halo and thick disk populations alone, leaving no excess that can be attributed to the dwarf spheroidal (dSph) galaxy that some authors have proposed as the origin of the CMa overdensity. If this galaxy resembles the dSph satellites of the Milky Way (MW) and of M31 and has the putative MV ~ –14.5… Expand
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