A Disk Origin for the Monoceros Ring and A13 Stellar Overdensities

  title={A Disk Origin for the Monoceros Ring and A13 Stellar Overdensities},
  author={Allyson A. Sheffield and Adrian. M. Price-Whelan and Anastasios Tzanidakis and Kathryn V. Johnston and Chervin F. P. Laporte and Branimir Sesar},
  journal={The Astrophysical Journal},
The Monoceros Ring (also known as the Galactic Anticenter Stellar Structure) and A13 are stellar overdensities at estimated heliocentric distances of d ∼ 11 kpc and 15 kpc observed at low Galactic latitudes toward the anticenter of our Galaxy. While these overdensities were initially thought to be remnants of a tidally disrupted satellite galaxy, an alternate scenario is that they are composed of stars from the Milky Way (MW) disk kicked out to their current location due to interactions between… 

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