activity
20002026
most citedGalaxy Clusters Discovered via the Sunyaev-Zel'dovich Effect in the 2500-square-degree SPT-SZ survey

708 citations · 3k across the 38 of their papers we have counts for

collaborators

39 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.GA2026

Direct imaging of sub-parsec binary SMBHs in the central galaxy of the NGC 5044 group

Francesco Ubertosi, Gerrit Schellenberger, Ewan O'Sullivan +7

Binary active galactic nuclei (AGN) consist of two supermassive black holes (SMBHs) hosted in a single galaxy that are simultaneously accreting gas. These systems are key to unders…

astro-ph.GA2026

A radio continuum view of Stephan's Quintet: age, dynamics and origin of the shock

K. Rajpurohit, E. O'Sullivan, G. Schellenberger +10

We present a detailed, multi-band radio continuum study of the compact galaxy group Stephan's Quintet (HCG 92). We use a combination of new (MeerKAT, uGMRT) and archival (LOFAR, VL…

astro-ph.HE2026

Sloshing Motions in Abell 3571 Revealed by XRISM/Resolve Velocity Mapping

Itsuki Aihara, Congyao Zhang, Sora Nakajima +12

Minor mergers can induce sloshing motions in the intracluster medium, leaving characteristic signatures in the thermodynamic structure and gas kinematics of cluster cores. Abell 35…

astro-ph.GA2026

Kinematics of the Weak Cool-Core Cluster A3571 Observed with XRISM: Low Cooling Rate Balanced by Low Heating Rate?

Hannah McCall, Irina Zhuravleva, Kyoko Matsushita +10

Most XRISM galaxy cluster observations to date have focused on AGN feedback or actively merging systems. The weak cool-core cluster A3571 was observed in four XRISM Cycle 1 pointin…

astro-ph.GA2026

AGN Fueling and Radio Jet Evolution in the Galaxy Group NGC 5044 revealed by VLBA HI Absorption and Proper-Motion Radio Observations

Francesco Ubertosi, Ewan O'Sullivan, Gerrit Schellenberger +8

The role of cooling gas in triggering active galactic nucleus (AGN) feedback in the centers of galaxy groups and clusters remains a key open question. NGC 5044, the X-ray brightest…