activity
20122026
most citedThe Dark Energy Survey: more than dark energy - an overview

1k citations · 6.2k across the 124 of their papers we have counts for

collaborators

126 papers

astro-ph.CO2026

A new measurement with SNe Requiem and Encore using

L. Bazzanini, G. Di Rosa, A. Acebron +24

We present a strong-lensing (SL) analysis of the galaxy cluster MACS J0138.0-2155 (z=0.336), the first known lens cluster discovered to host two distinct multiply imaged Type Ia su…

astro-ph.GA2026

Dynamical models of cluster members to probe the total mass properties of cluster subhalos. I. A comparison with parametric strong lensing models

Nicola Bianchetti, Claudio Grillo, Giovanni Granata +6

In this series of papers, we present dynamical models of cluster members in strong lensing (SL) galaxy clusters to independently probe the persistent discrepancy reported between S…

astro-ph.GA2026

A New Perspective on Galactic Evolution: Studying the Outskirts of the Abell S1063 Galaxy Cluster

L. Pecoraro, A. Mercurio, M. Annunziatella +14

Galaxy physical properties are influenced by their environments, but the processes responsible for mass and environmental quenching and structural transformations remain debated. G…

astro-ph.GA2026★ 1 cited

The velocity dispersion function of red galaxies in four Hubble Frontier Fields galaxy clusters

G. Granata, L. Tortorelli, C. Grillo +6

We present a detailed study of the stellar kinematic properties of red member galaxies in the cores of four strong lensing galaxy clusters at intermediate redshifts included in the…

astro-ph.GA2026

The Carousel Lens I: A Spectroscopic Survey of the Carousel Lens Field

Jackson H. O'Donnell, Demetrius Y. Williams, Tesla E. Jeltema +18

We present a spectroscopic survey of field galaxies and lensed sources in the vicinity of the strong lensing galaxy cluster known as the Carousel lens at z=0.49. Using both Gemini/…

astro-ph.GA2025

Strong Lensing Model and Dust Extinction Maps of the Host Galaxy of Type Ia Supernova H0pe

A. Galan, S. Schuldt, G. B. Caminha +11

Strong gravitational lensing by massive galaxy clusters offers rare opportunities to observe multiple images of distant () Type Ia supernovae (SNe) and to resolve the…

astro-ph.CO2025★ 12 cited

Cosmology with supernova Encore in the strong lensing cluster MACS J0138-2155: Lens model comparison and H0 measurement

S. H. Suyu, A. Acebron, C. Grillo +28

MACS J0138-2155 is the only known cluster to strongly lens two supernovae (SNe), Requiem and Encore, from the same host galaxy at z=1.949. We present seven independent mass models…

astro-ph.GA2025★ 1 cited

Galaxies at the edges: a complete census of MACS J0416.1-2403 cluster

Rossella Ragusa, Maurizio D'Addona, Amata Mercurio +20

Numerous studies have established that the environment influences the physical properties of a galaxy. While gas inflows supply the fuel for SF, high density and temperature condit…

astro-ph.GA2025★ 3 cited

Discovery of a Low-mass Strong-lens System in SMACS J0723.3-7327

Limeng Deng, Yiping Shu, Lei Wang +6

We report the discovery of an intriguing, low-mass galaxy-scale strong-lens system in the SMACS J0723.3-7327 galaxy cluster. By modeling James Webb Space Telescope imaging and Very…

astro-ph.GA2025★ 1 cited

A stellar dynamical mass measurement of an inactive black hole at redshift 2

Andrew B. Newman, Meng Gu, Sirio Belli +34

Supermassive black holes and their host galaxies grow together over time, producing correlations between the black hole mass and various galaxy properties. Determining the evolutio…

astro-ph.GA2025★ 1 cited

Is there a tilt in the fundamental (hyper)plane?

M. D'Addona, A. Mercurio, C. Grillo +18

We investigate the fundamental plane (FP) of selected early-type (ETG) member galaxies of the galaxy cluster PLCK G287.0+32.9 (), exploring also four-dimensional hy…

astro-ph.CO2025★ 8 cited

Cosmology with supernova Encore in the strong lensing cluster MACS J01382155: photometry, cluster members, and lens mass model

S. Ertl, S. H. Suyu, S. Schuldt +23

The strongly lensed Supernova (SN) Encore at a redshift of , discovered behind the galaxy cluster MACS J01382155 at , provides a rare opportunity for time-de…

astro-ph.GA2025★ 6 cited

Enhanced strong-lensing model of MACS~J0138.02155 based on new JWST and VLT/MUSE observations

Ana Acebron, Pietro Bergamini, Piero Rosati +10

We present a new parametric strong lensing analysis of the galaxy cluster MACS J0138.0-2155 at z = 0.336, the first known to show two multiply-imaged supernova (SN) siblings, SN Re…

astro-ph.GA2024

Cosmology with Supernova Encore in the lensing cluster MACS J01382155 -- Spectroscopy with MUSE

G. Granata, G. B. Caminha, S. Ertl +9

We present a spectroscopic analysis of MACS J01382155, at , the first galaxy cluster hosting two strongly-lensed supernovae (SNe), Requiem and Encore, providing us with…

astro-ph.CO2024★ 4 cited

Cosmography from accurate mass modeling of the lens group SDSS J0100+1818: five sources at three different redshifts

A. Bolamperti, C. Grillo, G. B. Caminha +6

Systems where multiple sources at different redshifts are strongly lensed by the same deflector allow one to directly investigate the evolution of the angular diameter distances wi…

astro-ph.GA2024★ 1 cited

The next step in galaxy cluster strong lensing: modeling the surface brightness of multiply-imaged sources

Ana Acebron, Claudio Grillo, Sherry H. Suyu +12

Overcoming both modeling and computational challenges, we present, for the first time, the extended surface-brightness distribution model of a strongly-lensed source in a complex g…

astro-ph.CO2024★ 9 cited

Improved model of the Supernova Refsdal cluster MACS J1149.5+2223 thanks to VLT/MUSE

S. Schuldt, C. Grillo, G. B. Caminha +9

We present new VLT/MUSE observations of the Hubble Frontier Field (HFF) galaxy cluster MACS J1149.5+2223, lensing the well-known supernova "Refsdal" into multiple images, which ena…

astro-ph.GA2024★ 3 cited

Strong-lensing and kinematic analysis of CASSOWARY 31: can strong lensing constrain the masses of multi-plane lenses?

H. Wang, R. Canameras, S. H. Suyu +4

We present a mass measurement for the secondary lens along the line of sight (LoS) in the multi-plane strong lens modeling of the group-scale lens CASSOWARY 31 (CSWA 31). The secon…

astro-ph.CO2024★ 51 cited

Lensed Type Ia Supernova "Encore" at z=2: The First Instance of Two Multiply-Imaged Supernovae in the Same Host Galaxy

J. D. R. Pierel, A. B. Newman, S. Dhawan +60

A bright (=24 mag), supernova (SN) candidate was discovered in JWST/NIRCam imaging acquired on 2023 November 17. The SN is quintuply-imaged as a result o…

astro-ph.CO2024★ 38 cited

JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78

J. D. R. Pierel, B. L. Frye, M. Pascale +60

Supernova (SN) H0pe is a gravitationally lensed, triply-imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Wel…

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.GA2024★ 7 cited

El Gordo needs El Anzuelo: Probing the structure of cluster members with multi-band extended arcs in JWST data

A. Galan, G. B. Caminha, J. Knollmüller +2

Gravitational lensing by galaxy clusters involves hundreds of galaxies over a large redshift range and increases the likelihood of rare phenomena (supernovae, dark substructures, e…

astro-ph.GA2024★ 20 cited

Primordial Rotating Disk Composed of 15 Dense Star-Forming Clumps at Cosmic Dawn

S. Fujimoto, M. Ouchi, K. Kohno +43

Early galaxy formation, initiated by the dark matter and gas assembly, evolves through frequent mergers and feedback processes into dynamically hot, chaotic structures. In contrast…

astro-ph.CO2024★ 1 cited

Augmenting the power of time-delay cosmography in lens galaxy clusters by probing their member galaxies. II. Cosmic chronometers

P. Bergamini, S. Schuldt, A. Acebron +9

We present a novel approach to measuring the expansion rate and the geometry of the Universe, which combine time-delay cosmography in lens galaxy clusters with pure samples of 'cos…