author={Andreas Koch and Eva K. Grebel},
  journal={The Astronomical Journal},
  • A. Koch, E. Grebel
  • Published 9 September 2005
  • Physics, Geology
  • The Astronomical Journal
The highly anisotropic distribution and apparent alignment of the Galactic satellites in polar great planes begs the question of how common such distributions are. The satellite system of M31 is the only nearby system for which we currently have sufficiently accurate distances to study the three-dimensional satellite distribution. We present the spatial distribution of the 15 currently known M31 companions in a coordinate system centered on M31 and aligned with its disk. Through a detailed… 

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