publication . Article . Other literature type . Preprint . 2008

The Aquarius project: the subhaloes of galactic haloes

Springel, Volker; Wang, Jie; Vogelsberger, Mark; Ludlow, Aaron; Jenkins, Adrian; Helmi, Amina; Navarro, Julio F.; Frenk, Carlos S.; White, Simon D. M.;
Open Access English
  • Published: 21 Dec 2008
We have performed the largest ever particle simulation of a Milky Way-sized dark matter halo, and present the most comprehensive convergence study for an individual dark matter halo carried out thus far. We have also simulated a sample of 6 ultra-highly resolved Milky-way sized halos, allowing us to estimate the halo-to-halo scatter in substructure statistics. In our largest simulation, we resolve nearly 300,000 gravitationally bound subhalos within the virialized region of the halo. Simulations of the same object differing in mass resolution by factors up to 1800 accurately reproduce the largest subhalos with the same mass, maximum circular velocity and positio...
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
free text keywords: methods: numerical, dark matter, COLD DARK-MATTER, SURFACE BRIGHTNESS GALAXIES, MISSING-SATELLITES PROBLEM, PHASE-SPACE STRUCTURE, LYMAN-ALPHA FOREST, LAMBDA-CDM HALOES, MILKY-WAY HALO, INFLATIONARY UNIVERSE, DENSITY PROFILES, INNER STRUCTURE, Halo, Dark matter halo, Physics, Cold dark matter, Astronomy, Astrophysics, Milky Way, Self-interacting dark matter, Dwarf galaxy problem, Substructure
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