Journal article
Haloes at the ragged edge: the importance of the splashback radius
Abstract
We have explored the outskirts of dark matter haloes out to 2.5 times the virial radius using a large sample of haloes drawn from Illustris, along with a set of zoom simulations (MUGS). Using these, we make a systematic exploration of the shape profile beyond Rvir. In the mean sphericity profile of Illustris haloes, 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 …
Authors
Snaith ON; Bailin J; Knebe A; Stinson G; Wadsley J; Couchman H
Journal
Monthly Notices of the Royal Astronomical Society, Vol. 472, No. 3, pp. 2694–2712
Publisher
Oxford University Press (OUP)
Publication Date
December 11, 2017
DOI
10.1093/mnras/stx2138
ISSN
0035-8711