139 citations · 647 across the 25 of their papers we have counts for
4 papers · 2 filters
Cluster mass functions in the quintessential Universe
Ewa L. Lokas, Paul Bode, Yehuda Hoffman
We use -body simulations to measure mass functions in flat cosmological models with quintessence characterized by constant with , -2/3 and -1/2. The results are compar…
How reliable is the kinematical evidence for dark matter: the effects of non-sphericity, substructure and streaming motions
Teresa Sanchis, Ewa L. Lokas, Gary A. Mamon
Using cosmological -body simulations of dark matter haloes, we study the effects of non-sphericity, substructure and streaming motions in reproducing the structure and internal…
The structure of voids
Stefan Gottloeber, Ewa Lokas, Anatoly Klypin +1
Using high resolution N-body simulations we address the problem of emptiness of giant 20 Mpc/h diameter voids found in the distribution of bright galaxies. Are the voids filled by…
Dark matter distribution in the Coma cluster from galaxy kinematics: breaking the mass-anisotropy degeneracy
Ewa L. Lokas, Gary A. Mamon
We study velocity moments of elliptical galaxies in the Coma cluster using Jeans equations. The dark matter distribution in the cluster is modelled by a generalised formula based u…