activity
19992026
most citedHubble Space Telescope Near-infrared and Optical Imaging of Faint Radio Sources in the Distant Cluster Cl0939+4713

127 citations · 253 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2026

Enabling Cosmic Web Analysis at Gigaparsec Scales: A Multi Block Approach for DisPerSE

Ankit Singh, Frazer Pearce, Meghan Gray +1

Cosmic filaments are the longest structures in the Universe and the dominant element of the cosmic web, channelling matter onto clusters and shaping the environments in which galax…

astro-ph.CO2026

Searching for signatures of fuzzy dark matter in cosmic filament profiles

Callum J. O'Kane, Alfonso Aragón-Salamanca, Ulrike Kuchner +1

Current observations reveal persistent tensions with the standard cold dark matter paradigm, raising the question of whether these can be explained by baryonic physics alone or req…

astro-ph.GA2026

Identifying group galaxies merging with massive clusters using machine learning

Rhys Jordan, Meghan E. Gray, Alfonso Aragón-Salamanca +3

The environment plays a critical role in galaxy evolution, with galaxy clusters and their infall regions offering diverse conditions that shape galaxies before they enter the dense…

astro-ph.GA2025

The life and times of dark matter haloes: what will I be when I grow up?

Julian Onions, Frazer Pearce, Alexander Knebe +6

Are the most massive objects in the Universe today the direct descendants of the most massive objects at higher redshift? We address this question by tracing the evolutionary histo…

astro-ph.GA2024★ 33 cited

The effect of cosmic web filaments on galaxy evolution

Callum J. O'Kane, Ulrike Kuchner, Meghan E. Gray +1

Galaxy properties are known to be affected by their environment. This is well established for the extremes of the density scales, between the high-density cluster environment and t…

astro-ph.GA2024★ 15 cited

Reconsidering the dynamical states of galaxy clusters using PCA and UMAP

Roan Haggar, Federico De Luca, Marco De Petris +10

Numerous metrics exist to quantify the dynamical state of galaxy clusters, both observationally and within simulations. Many of these correlate strongly with one another, but it is…

astro-ph.CO2024★ 8 cited

The Three Hundred project: Estimating the dependence of gas filaments on the mass of galaxy clusters

Sara Santoni, Marco De Petris, Gustavo Yepes +7

Galaxy clusters are located in the densest areas of the universe and are intricately connected to larger structures through the filamentary network of the Cosmic Web. In this scena…

astro-ph.CO2023

The three hundred project: thermodynamical properties, shocks and gas dynamics in simulated galaxy cluster filaments and their surroundings

Agustín M. Rost, Sebastián E. Nuza, Federico Stasyszyn +8

Using cosmological simulations of galaxy cluster regions from The Three Hundred project we study the nature of gas in filaments feeding massive clusters. By stacking the diffuse ma…

astro-ph.GA2023

The localization of galaxy groups in close proximity to galaxy clusters using cosmic web nodes

Daniel J. Cornwell, Ulrike Kuchner, Meghan E. Gray +4

We investigate the efficacy of using the cosmic web nodes identified by the DisPerSE topological filament finder to systematically identify galaxy groups in the infall regions arou…

astro-ph.GA2021★ 32 cited

Cosmic filaments delay quenching inside clusters

S. Kotecha, C. Welker, Z. Zhou +8

We investigate how large-scale cosmic filaments impact the quenching of galaxies within one virial radius of 324 simulated clusters from The Three Hundred project. We track cosmic…

astro-ph.CO2013★ 38 cited

Brighter galaxy bias: underestimating the velocity dispersions of galaxy clusters

L. Old, M. E. Gray, F. R. Pearce

We study the systematic bias introduced when selecting the spectroscopic redshifts of brighter cluster galaxies to estimate the velocity dispersion of galaxy clusters from both sim…

astro-ph1999★ 127 cited

Hubble Space Telescope Near-infrared and Optical Imaging of Faint Radio Sources in the Distant Cluster Cl0939+4713

Ian Smail, G. E. Morrison, M. E. Gray +4

We present deep Hubble Space Telescope NICMOS near-infrared and WFPC2 optical imaging of a small region in the core of the distant rich cluster Cl0939+4713 (z=0.41). We compare the…