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Mass distribution in nearby Abell clusters
Ewa L. Lokas, Radoslaw Wojtak, Stefan Gottloeber +2
We study the mass distribution in six nearby (z<0.06) relaxed Abell clusters of galaxies A0262, A0496, A1060, A2199, A3158 and A3558. Given the dominance of dark matter in galaxy c…
Halo Shapes and their Relation to Environment
Stefan Gottloeber, Victor Turchaninov
Using high resolution DM simulations we study the shape of dark matter halos. Halos become more spherical with decreasing mass. This trend is even more pronounced for the inner par…
Velocity moments of dark matter haloes
Radoslaw Wojtak, Ewa L. Lokas, Stefan Gottloeber +1
Using cosmological N-body simulations we study the line-of-sight velocity distribution of dark matter haloes focusing on the lowest-order even moments, dispersion and kurtosis, and…
The complex velocity distribution of galaxies in Abell 1689: implications for mass modelling
Ewa L. Lokas, Francisco Prada, Radoslaw Wojtak +2
The Abell 1689 galaxy cluster has recently become a subject of intensive study. Thanks to its intermediate redshift (z=0.183) its mass distribution can be reconstructed using numer…
Radial velocity moments of dark matter haloes
Radoslaw Wojtak, Ewa L. Lokas, Stefan Gottloeber +1
Using cosmological N-body simulations we study the radial velocity distribution in dark matter haloes focusing on the lowest-order even moments, dispersion and kurtosis. We determi…
Imprints of mass accretion on properties of galaxy clusters
Andreas Faltenbacher, Brandon Allgood, Stefan Gottloeber +2
A large scale SPH+N-body simulation (GADGET) of the concordance LCDM universe is used to investigate orientation and angular momentum of galaxy clusters at z=0 in connection with t…