924 citations · 16.4k across the 323 of their papers we have counts for
5 papers · 2 filters
An optimal filter for the detection of galaxy clusters through weak lensing
M. Maturi, M. Meneghetti, M. Bartelmann +2
We construct a linear filter optimised for detecting dark-matter halos in weak-lensing data. The filter assumes a mean radial profile of the halo shear pattern and modifies that sh…
Constraints on Dark Energy Models from Galaxy Clusters with Multiple Arcs
Massimo Meneghetti, Bhuvnesh Jain, Matthias Bartelmann +1
We make an exploratory study of how well dark energy models can be constrained using lensed arcs at different redshifts behind cluster lenses. Arcs trace the critical curves of clu…
Gravitational lensing of the CMB by galaxy clusters
M. Maturi, M. Bartelmann, M. Meneghetti +1
We adapt a non-linear filter proposed by Hu 2001 for detecting lensing of the CMB by large-scale structures to recover surface-density profiles of galaxy clusters from their locali…
Strong lensing by cluster-sized haloes in dark-energy cosmologies
Massimo Meneghetti, Matthias Bartelmann, Klaus Dolag +4
We study the efficiency of numerically simulated galaxy clusters for producing strong gravitational lensing events in different dark-energy cosmologies with constant and time-varia…
Evolution of dark-matter haloes in a variety of dark-energy cosmologies
M. Bartelmann, K. Dolag, F. Perrotta +4
High-resolution, numerical simulations of 17 cluster-sized dark-matter haloes in eight different cosmologies with and without dynamical dark energy confirm the picture that core ha…