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Bound and unbound substructures in Galaxy-scale Dark Matter haloes
Michal Maciejewski, Mark Vogelsberger, Simon D. M. White +1
We analyse the coarse-grained phase-space structure of the six Galaxy-scale dark matter haloes of the Aquarius Project using a state-of-the-art 6D substructure finder. Within r_50,…
Assembly History and Structure of Galactic Cold Dark Matter Halos
Jie Wang, J. F. Navarro, C. S. Frenk +6
We use the Aquarius simulation series to study the imprint of assembly history on the structure of Galaxy-mass cold dark matter halos. Our results confirm earlier work regarding th…
From dwarf spheroidals to cDs: Simulating the galaxy population in a LCDM cosmology
Qi Guo, Simon White, Michael Boylan-Kolchin +6
We apply updated semi-analytic galaxy formation models simultaneously to the stored halo/subhalo merger trees of the Millennium and Millennium-II simulations. These differ by a fac…
Kinematics of Milky Way Satellites in a Lambda Cold Dark Matter Universe
Louis E. Strigari, Carlos S. Frenk, Simon D. M. White
We investigate whether the subhalos of Lambda-CDM galaxy halos have potentials consistent with the observed properties of Milky Way satellites, particularly those with high-quality…
What is the (Dark) Matter with Dwarf Galaxies?
Till Sawala, Qi Guo, Cecilia Scannapieco +2
We present cosmological hydrodynamical simulations of the formation of dwarf galaxies in a representative sample of haloes extracted from the Millennium-II Simulation. Our six halo…
The evolution of the density of galaxy clusters and groups: denser environments at higher redshifts
Bianca M. Poggianti, Gabriella De Lucia, Jesus Varela +5
We show that, observationally, the projected local density distribution in high-z clusters is shifted towards higher values compared to clusters at lower redshift. To search for th…