89 citations · 278 across the 5 of their papers we have counts for
5 papers
Chandra and JVLA observations of HST Frontier Fields cluster MACS J0717.5+3745
R. J. van Weeren, G. A. Ogrean, C. Jones +24
To investigate the relationship between thermal and non-thermal components in merger galaxy clusters, we present deep JVLA and Chandra observations of the HST Frontier Fields clust…
Abell 1033: birth of a radio phoenix
F. de Gasperin, G. A. Ogrean, R. J. van Weeren +4
Extended steep-spectrum radio emission in a galaxy cluster is usually associated with a recent merger. However, given the complex scenario of galaxy cluster mergers, many of the di…
A giant radio halo in the cool core cluster CL1821+643
A. Bonafede, H. T. Intema, M. Brüggen +8
Giant radio halos are Mpc-size sources found in some merging galaxy clusters. The synchrotron emitting electrons are thought to be (re)accelerated by plasma turbulence induced by t…
No Shock Across Part of a Radio Relic in the Merging Galaxy Cluster ZwCl 2341.1+0000?
G. A. Ogrean, M. Brueggen, R. J. van Weeren +2
The galaxy cluster ZwCl 2341.1+0000 is a merging system at z=0.27, which hosts two radio relics and a central, faint, filamentary radio structure. The two radio relics have unusual…
Multiple density discontinuities in the merging galaxy cluster CIZA J2242.8+5301
G. A. Ogrean, M. Brüggen, R. J. van Weeren +4
CIZA J2242.8+5301, a merging galaxy cluster at z=0.19, hosts a double-relic system and a faint radio halo. Radio observations at frequencies ranging from a few MHz to several GHz h…