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The Projected Dark and Baryonic Ellipsoidal Structure of 20 CLASH Galaxy Clusters
Keiichi Umetsu, Mauro Sereno, Sut-Ieng Tam +24
We reconstruct the two-dimensional (2D) matter distributions in 20 high-mass galaxy clusters selected from the CLASH survey by using the new approach of performing a joint weak len…
Measuring the value of the Hubble constant "à la Refsdal"
C. Grillo, P. Rosati, S. H. Suyu +8
Realizing Refsdal's original idea from 1964, we present estimates of the Hubble constant that are complementary to and potentially competitive with those of other cosmological prob…
MACS J0416.1-2403: Impact of line-of-sight structures on strong gravitational lensing modelling of galaxy clusters
G. Chirivì, S. H. Suyu, C. Grillo +5
Exploiting the powerful tool of strong gravitational lensing by galaxy clusters to study the highest-redshift Universe and cluster mass distributions relies on precise lens mass mo…
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…
A Very Large (") Strong Gravitational Lens Selected with the Sunyaev-Zel'dovich Effect: PLCK G287.0+32.9 ( = 0.38)
Adi Zitrin, Stella Seitz, Anna Monna +7
Since galaxy clusters sit at the high-end of the mass function, the number of galaxy clusters both massive and concentrated enough to yield particularly large Einstein radii poses…
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…
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…
"Refsdal" meets Popper: comparing predictions of the re-appearance of the multiply imaged supernova behind MACSJ1149.5+2223
T. Treu, G. Brammer, J. M. Diego +25
Supernova "Refsdal," multiply imaged by cluster MACSJ1149.5+2223, represents a rare opportunity to make a true blind test of model predictions in extragalactic astronomy, on a time…
The projected gravitational potential of the galaxy cluster MACS~J1206 derived from galaxy kinematics
Dennis Stock, Sven Meyer, Eleonora Sarli +7
We reconstruct the radial profile of the projected gravitational potential of the galaxy cluster MACS-J1206 from 592 spectroscopic measurements of velocities of cluster members. Fo…
The evolution of the spatially-resolved metal abundance in galaxy clusters up to z=1.4
S. Ettori, A. Baldi, I. Balestra +3
We present the combined analysis of the metal content of 83 objects in the redshift range 0.09-1.39, and spatially-resolved in the 3 bins (0-0.15, 0.15-0.4, >0.4) R500, as obtained…
Measurements of the Sunyaev-Zel'dovich Effect in MACS J0647.7+7015 and MACS J1206.2-0847 at High Angular Resolution with MUSTANG
Alexander H. Young, Tony Mroczkowski, Charles Romero +18
We present high resolution (9) imaging of the Sunyaev-Zel'dovich Effect (SZE) toward two massive galaxy clusters, MACS J0647.7+7015 () and MACS J1206.2-0…
Hubble Space Telescope Combined Strong and Weak Lensing Analysis of the CLASH Sample: Mass and Magnification Models and Systematic Uncertainties
Adi Zitrin, Agnese Fabris, Julian Merten +23
We present results from a comprehensive lensing analysis in HST data, of the complete CLASH cluster sample. We identify new multiple-images previously undiscovered allowing improve…
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…
The MUSIC of CLASH: predictions on the concentration-mass relation
M. Meneghetti, E. Rasia, J. Vega +42
We present the results of a numerical study based on the analysis of the MUSIC-2 simulations, aimed at estimating the expected concentration-mass relation for the CLASH cluster sam…
CLASH: The Concentration-Mass Relation of Galaxy Clusters
J. Merten, M. Meneghetti, M. Postman +38
We present a new determination of the concentration-mass relation for galaxy clusters based on our comprehensive lensing analysis of 19 X-ray selected galaxy clusters from the Clus…
CLASH: Weak-Lensing Shear-and-Magnification Analysis of 20 Galaxy Clusters
Keiichi Umetsu, Elinor Medezinski, Mario Nonino +21
We present a joint shear-and-magnification weak-lensing analysis of a sample of 16 X-ray-regular and 4 high-magnification galaxy clusters at 0.19<z<0.69 selected from the Cluster L…
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…
CLASH: Extending galaxy strong lensing to small physical scales with distant sources highly-magnified by galaxy cluster members
C. Grillo, R. Gobat, V. Presotto +35
We present a strong lensing system in which a double source is imaged 5 times by 2 early-type galaxies. We take advantage in this target of the multi-band photometry obtained as pa…
Characterizing faint galaxies in the reionization epoch: LBT confirms two L<0.2L* sources at z=6.4 behind the CLASH/Frontier Fields cluster MACS0717.5+3745
E. Vanzella, A. Fontana, A. Zitrin +18
We report the LBT/MODS1 spectroscopic confirmation of two images of faint Lyman alpha emitters at behind the Frontier Fields galaxy cluster MACSJ0717.5+3745. A wide range o…
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…
Three Gravitationally Lensed Supernovae Behind CLASH Galaxy Clusters
Brandon Patel, Curtis McCully, Saurabh W. Jha +42
We report observations of three gravitationally lensed supernovae (SNe) in the Cluster Lensing And Supernova survey with Hubble (CLASH) Multi-Cycle Treasury program. These objects,…
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…
Type-Ia Supernova Rates to Redshift 2.4 from CLASH: the Cluster Lensing And Supernova survey with Hubble
O. Graur, S. A. Rodney, D. Maoz +38
We present the supernova (SN) sample and Type-Ia SN (SN Ia) rates from the Cluster Lensing And Supernova survey with Hubble (CLASH). Using the Advanced Camera for Surveys and the W…
The Contribution of Halos with Different Mass Ratios to the Overall Growth of Cluster-Sized Halos
Doron Lemze, Marc Postman, Shy Genel +39
We provide a new observational test for a key prediction of the ΛCDM cosmological model: the contributions of mergers with different halo-to-main-cluster mass ratios to cluster-siz…