175 citations · 894 across the 25 of their papers we have counts for
3 papers · 1 filter
CLASH-VLT: Constraining deviation from GR with the mass profiles of nine massive galaxy clusters
L. Pizzuti, A. Biviano, K. Umetsu +5
We investigate the anisotropic stress parameter, , defined as the ratio of the gravitational potentials in the linearly perturbed Friedmann-Lemaître Robertson-Walker metric,…
The shape of the Chameleon fifth-force on the mass components of galaxy clusters
Lorenzo Pizzuti, Valentina Amatori, Alexandre M. Pombo +1
In the context of Chameleon gravity, we present a semi-analytical solution of the chameleon field profile in accurately modelled galaxy cluster's mass components, namely: the stell…
Mass Modeling and Kinematics of Galaxy Clusters in Modified Gravity
Lorenzo Pizzuti, Yacer Boumechta, Sandeep Haridasu +6
The chameleon screening mechanism has been constrained many a time using dynamic and kinematic galaxy cluster observables. Current constraints are, however, insensitive to differen…