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Feedback in the merging galaxy group NGC6338
Gerrit Schellenberger, Ewan O'Sullivan, Simona Giacintucci +6
The galaxy group NGC6338 is one of the most violent group-group mergers known to date. While the central dominant galaxies rush at each other at 1400km/s along the line of sight, w…
LOFAR Observations of X-ray Cavity Systems
L. Bîrzan, D. A. Rafferty, M. Brüggen +8
We present LOFAR observations at 120-168 MHz of 42 systems with possible X-ray cavities in their hot atmosphere, of which 17 are groups or ellipticals, 19 are nearby clusters (z<0.…
The relation between the diffuse X-ray luminosity and the radio power of the central AGN in galaxy groups
T. Pasini, M. Brūggen, F. de Gasperin +10
Our understanding of how AGN feedback operates in galaxy clusters has improved in recent years owing to large efforts in multi-wavelength observations and hydrodynamical simulation…
The beautiful mess in Abell 2255
A. Botteon, G. Brunetti, R. J. van Weeren +18
We present LOFAR observations of one of the most spectacular objects in the radio sky: Abell 2255. This is a nearby () merging galaxy cluster hosting one of the first r…
LOFAR discovery of a radio halo in the high-redshift galaxy cluster PSZ2 G099.86+58.45
R. Cassano, A. Botteon, G. Di Gennaro +15
In this Letter, we report the discovery of a radio halo in the high-redshift galaxy cluster PSZ2 G099.86+58.45 () with the LOw Frequency ARray (LOFAR) at 120-168 MHz. This…
A Study of High-redshift AGN Feedback in SZ Cluster Samples
L. Bîrzan, D. A. Rafferty, M. Brüggen +1
We present a study of AGN feedback at higher redshifts () using Sunyaev-Zel'dovich (SZ) selected samples of clusters from the South-Pole Telescope and Atacama Cosmology…