activity
20042026
most citedThe Case for Electron Re-Acceleration at Galaxy Cluster Shocks

203 citations · 499 across the 18 of their papers we have counts for

collaborators

20 papers

astro-ph.HE2026

Exemplary Merging Clusters II: XMM-Newton and Chandra X-ray Observations of MACS J1752.0+4440 and ZwCl 1856.8+6616

K. HyeongHan, K. Finner, W. Lee +10

Using deep XMM-Newton and Chandra observations, we compare the double-radio-relic galaxy cluster mergers MACS J1752.0+4440 and ZwCl 1856.8+6616. Both are 1:1 mass-ratio mergers wit…

astro-ph.CO2026

Toward Detecting the Moving Lens Effect with Optical Spectroscopy

David Wittman, Rodrigo Stancioli, Christopher Hopp

Relativity predicts that sky-plane motion of a gravitational lens changes the wavelengths of lensed photons. This moving lens effect is orders of magnitude smaller than cosmologica…

astro-ph.CO2026

X-SORTER (X-ray Survey Of meRging clusTErs in Redmapper): X-ray and Spectroscopic Characterization of 12 Optically Selected Galaxy Cluster Merger Candidates

Christopher Hopp, David Wittman, Rodrigo Stancioli +3

Merging galaxy clusters offer a unique probe of dark matter (DM) interactions through the spatial offsets between galaxies, the intracluster medium, and the DM halo. Systems that a…

astro-ph.HE2025

A Very Rich Bimodal Galaxy Cluster Merger: RXC J0032.1+1808

David Wittman, Rodrigo Stancioli, Faik Bouhrik +3

The galaxy cluster RXC J0032.1+1808 has been well-studied with optical imaging and gravitational lensing mass maps, both of which reveal an elongated morphology in the north-south…

astro-ph.CO2025

Discovery and Multi-Wavelength Analysis of a New Dissociative Galaxy Merger: The Champagne Cluster

Faik Bouhrik, Rodrigo Stancioli, David Wittman

We report the discovery of a new binary galaxy cluster merger, the Champagne Cluster (RM J130558.9+263048.4), using a detection method that identifies dynamically active clusters i…

astro-ph.CO2024★ 1 cited

Weak-Lensing Characterization of the Dark Matter in 29 Merging Clusters that Exhibit Radio Relics

Kyle Finner, M. James Jee, Hyejeon Cho +5

We present a multiwavelength analysis of 29 merging galaxy clusters that exhibit radio relics. For each merging system, we perform a weak-lensing analysis on Subaru optical imaging…