4 papers
Linear perturbation theory and structure formation in a Brans-Dicke theory of gravity without dark matter
Lorenzo Gervani, Antonaldo Diaferio, Francesco Pace +1
We investigate the formation of the large-scale cosmic structure in a scalar-tensor theory of gravity belonging to the class of the Brans--Dicke theories. The universe contains bar…
The Blooming Tree Algorithm at Work: Clusters, Filaments and Superclusters in the Field of A2029
Heng Yu, Antonaldo Diaferio
The Blooming Tree (BT) algorithm, based on the hierarchical clustering method, is designed to identify clusters, groups, and substructures from galaxy redshift surveys. We apply th…
Cluster Lensing Mass Inversion (CLUMI+): Combining Dynamics and Weak Lensing around Galaxy Clusters
Keiichi Umetsu, Michele Pizzardo, Antonaldo Diaferio +1
We present CLUMI+, a self-consistent, multiprobe methodology for reconstructing the mass distribution in and around galaxy clusters by combining gravitational lensing and dynamical…
Outer regions of galaxy clusters as a new probe to test modifications to gravity
Minahil Adil Butt, Sandeep Haridasu, Antonaldo Diaferio +4
We apply the caustic technique to samples of galaxy clusters stacked in redshift space to estimate the gravitational potential in the cluster's outer region and test modifications…