5 papers
Cluster gravitational redshifts: uncertainties and survey requirements
Eleni Tsaprazi, Giorgio F. Lesci, Federico Marulli +2
We investigate the impact of observational and theoretical uncertainties in cluster gravitational redshifts as a probe of modified gravity using an end-to-end forecasting pipeline.…
CLASH-VLT velocity anisotropy profiles in a stack of massive galaxy clusters
E. Maraboli, A. Biviano, C. Grillo +4
We measure the velocity anisotropy profile of different galaxy cluster member populations by analysing the stacked projected phase space of nine massive ($M_\mathrm{200c}>7…
CLASH-VLT: The variance in the velocity anisotropy profiles of galaxy clusters
A. Biviano, E. A. Maraboli, L. Pizzuti +9
The velocity anisotropy profiles, , of galaxy clusters are directly related to the shape of the orbits of their member galaxies. Knowledge of is important to underst…
Beyond general relativity: probing gravity with gravitational redshifts
Eleni Tsaprazi, Giorgio F. Lesci, Federico Marulli +7
Despite the success of general relativity (GR), the unexplained nature of dark energy on cosmological scales leaves open the question of whether GR provides a complete description…
Galaxy cluster virial quantities from extrapolating strong lensing mass profiles
Enrico Maraboli, Claudio Grillo, Pietro Bergamini +1
We study the radial total mass profiles of nine massive galaxy clusters ( M) in the redshift range . These clusters were obse…