924 citations · 16.4k across the 323 of their papers we have counts for
6 papers · 1 filter
Mass Distributions of HST Galaxy Clusters from Gravitational Arcs
Julia M. Comerford, Massimo Meneghetti, Matthias Bartelmann +1
Although N-body simulations of cosmic structure formation suggest that dark matter halos have density profiles shallower than isothermal at small radii and steeper at large radii,…
Combining weak and strong lensing in cluster potential reconstruction
M. Cacciato, M. Bartelmann, M. Meneghetti +1
We propose a method for recovering the two-dimensional gravitational potential of galaxy clusters which combines data from weak and strong gravitational lensing. A first estimate o…
The effects of ellipticity and substructure on estimates of cluster density profiles based on lensing and kinematics
M. Meneghetti, M. Bartelmann, A. Jenkins +1
We address the question of how well the density profile of galaxy clusters can be determined by combining strong lensing and velocity dispersion data. We use cosmological dark matt…
The Lensed Arc Production Efficiency of Galaxy Clusters: A Comparison of Matched Observed and Simulated Samples
Assaf Horesh, Eran O. Ofek, Dan Maoz +3
We compare the statistical properties of giant gravitationally lensed arcs produced in matched simulated and observed cluster samples. The observed sample consists of 10 X-ray sele…
A fast method for computing strong-lensing cross sections: Application to merging clusters
C. Fedeli, M. Meneghetti, M. Bartelmann +2
Strong gravitational lensing by irregular mass distributions, such as galaxy clusters, is generally not well quantified by cross sections of analytic mass models. Computationally e…
The impact of gas physics on strong cluster lensing
Ewald Puchwein, Matthias Bartelmann, Klaus Dolag +1
Previous studies of strong gravitational lensing by galaxy clusters neglected the potential impact of the intracluster gas. Here, we compare simulations of strong cluster lensing i…