87 citations · 726 across the 21 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…
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…
Statistical distribution of gravitational-lensing excursion angles: Winding ways to us from the deep universe
Takashi Hamana, Matthias Bartelmann, Naoki Yoshida +1
We investigate statistical distributions of differences in gravitational-lensing deflections between two light rays, the so-called lensing excursion angles. A probability distribut…
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…