242 citations · 390 across the 22 of their papers we have counts for
23 papers
CHEX-MATE: AMALGAM weak-lensing analysis of 41 Planck Sunyaev-Zel'dovich-selected galaxy clusters
Keiichi Umetsu, Raphael Gavazzi, Mauro Sereno +20
We present a weak-lensing shear analysis of 41 Planck SZ-selected galaxy clusters at from the CHEX-MATE sample, using wide-field Subaru/Suprime-Cam and CFHT/Meg…
CLASH-VLT: The Fifth Force in Chameleon Gravity from Joint Lensing and Kinematics Cluster Mass Profiles
Lorenzo Pizzuti, Federico Rivano, Keiichi Umetsu +1
We present a high-precision joint gravitational-lensing and kinematic analysis of nine massive galaxy clusters from the CLASH and CLASH-VLT surveys to test chameleon screening grav…
Novel insights into the Coma cluster kinematics with DESI. I. Linking mass profile, orbital anisotropy, and galaxy populations
S. Pedratti, L. Pizzuti, M. Fossati +4
We investigate the kinematic properties of the Coma galaxy cluster using a new, large spectroscopic sample of member galaxies, from the Dark Energy Spectroscopic Instrument (DESI).…
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\…
Bayesian luminosity function estimation in multi-depth datasets with selection effects: A case study for Lyman emitters
Davide Tornotti, Matteo Fossati, Michele Fumagalli +3
We present a hierarchical Bayesian framework designed to infer the luminosity function of any class of object by jointly modelling data from multiple surveys with varying depth, co…
CHEX-MATE: exploring the kinematical properties of Planck galaxy clusters
Lorenzo Pizzuti, Rafael Barrena, Mauro Sereno +19
We analyse the kinematical properties of the CHEX-MATE (Cluster HEritage project with XMM-Newton - Mass Assembly and Thermodynamics at the Endpoint of structure formation) galaxy c…
Testing Refracted Gravity with kinematics of galaxy clusters
Lorenzo Pizzuti, Federico Fantoccoli, Valeria Broccolato +2
Refracted Gravity (RG) is a a classical theory of gravity where a gravitational permittivity $ a monotonically-increasing function of the local density rho , is introduced in the P…
CHEX-MATE: Dynamical masses for a sample of 101 Planck Sunyaev-Zeldovich-selected galaxy clusters
Mauro Sereno, Sophie Maurogordato, Alberto Cappi +23
The Cluster HEritage project with XMM-Newton - Mass Assembly and Thermodynamics at the Endpoint of structure formation (CHEX-MATE) is a programme to study a minimally biased sample…
On the nature of the missing mass of galaxy clusters in MOND: the view from gravitational lensing
Benoit Famaey, Lorenzo Pizzuti, Ippocratis D. Saltas
Modified Newtonian Dynamics (MOND) has long been known to fail in galaxy clusters, implying a residual missing mass problem for clusters in this context. Here, using mass profiles…
The radial orbits of ram-pressure-stripped galaxies in clusters from the GASP survey
A. Biviano, B. M. Poggianti, Y. Jaffé +4
We analyse a sample of 244 ram-pressure-stripped candidate galaxy members within the virial radius of 62 nearby clusters, to determine their velocity anisotropy profile . We…
Caustic and hydrostatic mass bias: Implications for modified gravity
Minahil Adil Butt, Balakrishna S. Haridasu, Yacer Boumechta +4
We propose and perform a joint analysis of the two different mass estimates of galaxy clusters, namely the hydrostatic and caustic techniques. Firstly, we show comprehensively that…
CLASH-VLT: The inner slope of the MACS J1206.2-0847 dark matter density profile
A. Biviano, L. Pizzuti, A. Mercurio +7
The inner slope (gammadm) of the dark matter (DM) density profile of cosmological halos carries information about the properties of DM and/or baryonic processes affecting the halo…
Constraining Chameleon screening using galaxy cluster dynamics
Yacer Boumechta, Balakrishna S. Haridasu, Lorenzo Pizzuti +3
We constrain the Chameleon \textit{screening} mechanism in galaxy clusters, essentially obtaining limits on the coupling strength and the asymptotic value of the field $ϕ_{\inf…
Boltzmann equations for astrophysical Stochastic Gravitational Wave Backgrounds scattering off of massive objects
Lorenzo Pizzuti, Alessandro Tomella, Carmelita Carbone +2
This work presents a set of coupled Boltzmann equations describing the intensity and polarisation Stokes parameters of the SGWB. Collision terms, which account for gravitational Co…
Testing Screening Mechanisms with Mass Profiles of Galaxy Clusters
Lorenzo Pizzuti
We present \textsc{MG-MAMPOSSt}, a license-free code to constrain modified gravity models by reconstructing the mass profile of galaxy clusters with the kinematics of the cluster's…
MG-MAMPOSSt, a code to test gravity at galaxy-cluster scales: a technical introduction
L. Pizzuti, I. D. Saltas, A. Biviano +2
The \textsc{MG-MAMPOSSt} code is a license-free \textsc{Fortran95} code to perform tests of General Relativity (GR) through the analyses of kinematical data of galaxy clusters base…
Probing Vainsthein-screening gravity with galaxy clusters using internal kinematics and strong and weak lensing
Lorenzo Pizzuti, Ippocratis D. Saltas, Keiichi Umetsu +1
We use high-precision combined strong/weak lensing and kinematics measurements of the total mass profiles of the observed galaxy clusters MACS~J1206.2-0847 and Abell~S1063, to cons…
EuCAPT White Paper: Opportunities and Challenges for Theoretical Astroparticle Physics in the Next Decade
R. Alves Batista, M. A. Amin, G. Barenboim +134
Astroparticle physics is undergoing a profound transformation, due to a series of extraordinary new results, such as the discovery of high-energy cosmic neutrinos with IceCube, the…
Modified Gravity and Cosmology: An Update by the CANTATA Network
Emmanuel N. Saridakis, Ruth Lazkoz, Vincenzo Salzano +50
General Relativity and the CDM framework are currently the standard lore and constitute the concordance paradigm. Nevertheless, long-standing open theoretical issues, as well as…
MG-MAMPOSSt: A code to test modifications of gravity with the dynamics of galaxy clusters
Lorenzo Pizzuti, Ippocratis D. Saltas, Luca Amendola
We present an upgraded version of \textsc{MG-MAMPOSSt}, an extension of the \textsc{MAMPOSSt} algorithm that performs Bayesian fits of models of mass and velocity anisotropy profil…
Future constraints on the gravitational slip with the mass profiles of galaxy clusters
Lorenzo Pizzuti, Ippocratis D. Saltas, Santiago Casas +2
The gravitational slip parameter is an important discriminator between large classes of gravity theories at cosmological and astrophysical scales. In this work we use a combination…
CLASH-VLT: constraints on gravity models with galaxy clusters using lensing and kinematic analyses
L. Pizzuti, B. Sartoris, L. Amendola +10
We perform a maximum likelihood kinematic analysis of the two dynamically relaxed galaxy clusters MACS J1206.2-0847 at and RXC J2248.7-4431 at to determine the to…
CLASH-VLT: Testing the Nature of Gravity with Galaxy Cluster Mass Profiles
L. Pizzuti, B. Sartoris, S. Borgani +13
We use high-precision kinematic and lensing measurements of the total mass profile of the dynamically relaxed galaxy cluster MACS J1206.2-0847 at to estimate the value of…