A plane of high-velocity galaxies across the Local Group

@article{Banik2018APO,
  title={A plane of high-velocity galaxies across the Local Group},
  author={Indranil Banik and HongSheng Zhao},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2018},
  volume={473},
  pages={4033-4054}
}
We recently showed that several Local Group (LG) galaxies have much higher radial velocities (RVs) than predicted by a 3D dynamical model of the standard cosmological paradigm. Here, we show that 6 of these 7 galaxies define a thin plane with root mean square thickness of only 101 kpc despite a widest extent of nearly 3 Mpc, much larger than the conventional virial radius of the Milky Way (MW) or M31. This plane passes within ${\sim 70}$ kpc of the MW-M31 barycentre and is oriented so the MW… 

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