Haloes at the ragged edge: the importance of the splashback radius

@article{Snaith2017HaloesAT,
  title={Haloes at the ragged edge: the importance of the splashback radius},
  author={Owain N. Snaith and Jeremy Bailin and Alexander Knebe and Greg Stinson and James Wadsley and Hugh M. P. Couchman},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2017},
  volume={472},
  pages={2694-2712}
}
  • Owain N. Snaith, Jeremy Bailin, +3 authors Hugh M. P. Couchman
  • Published 2017
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We have explored the outskirts of dark matter haloes out to 2.5 times the virial radius using a large sample of halos drawn from Illustris, along with a set of zoom simulations (MUGS). Using these, we make a systematic exploration of the shape profile beyond R$_{vir}$. In the mean sphericity profile of Illustris halos we identify a dip close to the virial radius, which is robust across a broad range of masses and infall rates. The inner edge of this feature may be related to the virial radius… CONTINUE READING

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