Is there substructure around M87

@article{Oldham2016IsTS,
  title={Is there substructure around M87},
  author={L. Oldham and N. Evans},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2016},
  volume={462},
  pages={298-306}
}
  • L. Oldham, N. Evans
  • Published 2016
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We present a general method to identify infalling substructure in discrete datasets with position and line-of-sight velocity data. We exploit the fact that galaxies falling onto a brightest cluster galaxy (BCG) in a virialised cluster, or dwarf satellites falling onto a central galaxy like the Milky Way, follow nearly radial orbits. If the orbits are exactly radial, we show how to find the probability distribution for a satellite's energy, given a tracer density for the satellite population, by… CONTINUE READING
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