A revised view of the Canis Major stellar overdensity with DECam and Gaia: new evidence of a stellar warp of blue stars

  title={A revised view of the Canis Major stellar overdensity with DECam and Gaia: new evidence of a stellar warp of blue stars},
  author={Julio A. Carballo-Bello and David Mart'inez-Delgado and J. M. Corral-Santana and Emilio J. Alfaro and Camila Navarrete and Anna Katherina Vivas and M{\'a}rcio Catel{\'a}n},
  journal={Monthly Notices of the Royal Astronomical Society},
We present DECam imaging combined with Gaia DR2 data to study the Canis Major overdensity. The presence of the so-called Blue Plume stars in a low-pollution area of the color-magnitude diagram allows us to derive the distance and proper motions of this stellar feature along the line of sight of its hypothetical core. The stellar overdensity extends on a large area of the sky at low Galactic latitudes, below the plane, and between 230$^\circ < \ell < 255^\circ$. According to the orbit derived… 
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