activity
20122026
most citedA Long Time Ago in a Galaxy Far, Far Away: A Candidate z ~ 12 Galaxy in Early JWST CEERS Imaging

350 citations · 2.9k across the 72 of their papers we have counts for

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Showing astro-ph.COShow all

13 papers · 1 filter

astro-ph.CO2026

The dynamics of the Anglerfish cluster

B. Destefanis, M. Balboni, I. Bartalucci +8

Merging galaxy clusters represent the ideal laboratory to test our understanding of the large scale structure formation history and the processes involved. While many merging clust…

astro-ph.CO2025★ 3 cited

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 understan…

astro-ph.CO2024★ 5 cited

The powerful lens galaxy cluster PLCK G287.0+32.9 ()

Maurizio D'Addona, Amata Mercurio, Piero Rosati +17

We present a new high-precision strong lensing model of PLCK G287.032.9, a massive lens galaxy cluster at , with the aim to get an accurate estimation of its effective…

astro-ph.CO2017★ 32 cited

Mass profile decomposition of the Frontier Fields cluster MACS J0416-02403. Insights on the Dark-Matter inner profile

M. Annunziatella, M. Bonamigo, C. Grillo +8

We present a high resolution dissection of the two-dimensional total mass distribution in the core of the Hubble Frontier Fields galaxy cluster MACS J0416.1-2403, at z ~ 0.396. We…

astro-ph.CO2016★ 21 cited

Numerical simulations challenged on the prediction of massive subhalo abundance in galaxy clusters: the case of Abell 2142

E. Munari, C. Grillo, G. De Lucia +6

In this Letter we compare the abundance of member galaxies of a rich, nearby () galaxy cluster, Abell 2142, with that of halos of comparable virial mass extracted from sets…

astro-ph.CO2015★ 147 cited

CLASH-VLT: A Highly Precise Strong Lensing Model of the Galaxy Cluster RXC J2248.7-4431 (Abell S1063) and Prospects for Cosmography

G. B. Caminha, C. Grillo, P. Rosati +32

We perform a comprehensive study of the total mass distribution of the galaxy cluster RXCJ2248 () with a set of high-precision strong lensing models, which take advantage…

astro-ph.CO2015★ 127 cited

CLASH-VLT: Dissecting the Frontier Fields Galaxy Cluster MACS J0416.1-2403 with Spectra of Member Galaxies

I. Balestra, A. Mercurio, B. Sartoris +33

We present VIMOS-VLT spectroscopy of the Frontier Fields cluster MACS~J0416.1-2403 (z=0.397). Taken as part of the CLASH-VLT survey, the large spectroscopic campaign provided more…

astro-ph.CO2015

CLASH-VLT: Substructure in the galaxy cluster MACS J1206.2-0847 from kinematics of galaxy populations

M. Girardi, A. Mercurio, I. Balestra +35

In the effort to understand the link between the structure of galaxy clusters and their galaxy populations, we focus on MACSJ1206.2-0847 at z~0.44 and probe its substructure in the…

astro-ph.CO2014★ 186 cited

CLASH-VLT: Insights on the mass substructures in the Frontier Fields Cluster MACS J0416.1-2403 through accurate strong lens modeling

C. Grillo, S. H. Suyu, P. Rosati +25

We present a detailed mass reconstruction and a novel study on the substructure properties in the core of the CLASH and Frontier Fields galaxy cluster MACS J0416.1-2403. We show an…

astro-ph.CO2014★ 89 cited

Intra Cluster Light properties in the CLASH-VLT cluster MACS J1206.2-0847

V. Presotto, M. Girardi, M. Nonino +46

We aim at constraining the assembly history of clusters by studying the intra cluster light (ICL) properties, estimating its contribution to the fraction of baryons in stars, f*, a…

astro-ph.CO2014★ 36 cited

CLASH-VLT: Constraints on the Dark Matter Equation of State from Accurate Measurements of Galaxy Cluster Mass Profiles

Barbara Sartoris, Andrea Biviano, Piero Rosati +39

A pressureless scenario for the Dark Matter (DM) fluid is a widely adopted hypothesis, despite the absence of a direct observational evidence. According to general relativity, the…

astro-ph.CO2013★ 56 cited

CLASH-VLT: spectroscopic confirmation of a z=6.11 quintuply lensed galaxy in the Frontier Fields Cluster RXC J2248.7-4431

I. Balestra, E. Vanzella, P. Rosati +41

We present VIsible Multi-Object Spectrograph (VIMOS) observations of a z 6 galaxy quintuply imaged by the Frontier Fields galaxy cluster RXC J2248.7-4431 (z=0.348). This sub-L^*, h…

astro-ph.CO2013★ 190 cited

CLASH-VLT: The mass, velocity-anisotropy, and pseudo-phase-space density profiles of the z=0.44 galaxy cluster MACS 1206.2-0847

A. Biviano, P. Rosati, I. Balestra +44

We use an unprecedented data-set of about 600 redshifts for cluster members, obtained as part of a VLT/VIMOS large programme, to constrain the mass profile of the z=0.44 cluster MA…