Diffuse radio emission from galaxy clusters
In a growing number of galaxy clusters diffuse extended radio sources have been found.
These sources are not directly associated with individual cluster galaxies. The radio …
These sources are not directly associated with individual cluster galaxies. The radio …
Cosmic rays in galaxy clusters and their nonthermal emission
G Brunetti, TW Jones - International Journal of Modern Physics D, 2014 - World Scientific
Radio observations prove the existence of relativistic particles and magnetic field associated
with the intra-cluster-medium (ICM) through the presence of extended synchrotron emission …
with the intra-cluster-medium (ICM) through the presence of extended synchrotron emission …
The Coma cluster at LOFAR frequencies. II. The halo, relic, and a new accretion relic
A Bonafede, G Brunetti, L Rudnick… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract We present LOw Frequency ARray observations of the Coma Cluster field at 144
MHz. The cluster hosts one of the most famous radio halos, a relic, and a low surface …
MHz. The cluster hosts one of the most famous radio halos, a relic, and a low surface …
LOFAR observations of galaxy clusters in HETDEX-Extraction and self-calibration of individual LOFAR targets
RJ Van Weeren, TW Shimwell, A Botteon… - Astronomy & …, 2021 - aanda.org
Diffuse cluster radio sources, in the form of radio halos and relics, reveal the presence of
cosmic rays and magnetic fields in the intracluster medium (ICM). These cosmic rays are …
cosmic rays and magnetic fields in the intracluster medium (ICM). These cosmic rays are …
The case for electron re-acceleration at galaxy cluster shocks
On the largest scales, the Universe consists of voids and filaments making up the cosmic
web. Galaxy clusters are located at the knots in this web, at the intersection of filaments …
web. Galaxy clusters are located at the knots in this web, at the intersection of filaments …
Shock acceleration efficiency in radio relics
Context. Radio relics in galaxy clusters are giant diffuse synchrotron sources powered in
cluster outskirts by merger shocks. Although the relic–shock connection has been …
cluster outskirts by merger shocks. Although the relic–shock connection has been …
Radio halos in a mass-selected sample of 75 galaxy clusters-II. Statistical analysis
V Cuciti, R Cassano, G Brunetti, D Dallacasa… - Astronomy & …, 2021 - aanda.org
Context. Many galaxy clusters host megaparsec-scale diffuse radio sources called radio
halos. Their origin is tightly connected to the processes that lead to the formation of clusters …
halos. Their origin is tightly connected to the processes that lead to the formation of clusters …
LOFAR, VLA, and Chandra observations of the Toothbrush galaxy cluster
RJ Van Weeren, G Brunetti, M Brüggen… - The Astrophysical …, 2016 - iopscience.iop.org
We present deep LOFAR observations between 120 and 181 MHz of the" Toothbrush"(RX
J0603. 3+ 4214), a cluster that contains one of the brightest radio relic sources known. Our …
J0603. 3+ 4214), a cluster that contains one of the brightest radio relic sources known. Our …
Second-order fermi reacceleration mechanisms and large-scale synchrotron radio emission in intracluster bridges
G Brunetti, F Vazza - Physical Review Letters, 2020 - APS
Radio observations at low frequencies with the low frequency array (LOFAR) start
discovering gigantic radio bridges connecting pairs of massive galaxy clusters. These …
discovering gigantic radio bridges connecting pairs of massive galaxy clusters. These …
Simulations of extragalactic magnetic fields and of their observables
The origin of extragalactic magnetic fields is still poorly understood. Based on a dedicated
suite of cosmological magneto-hydrodynamical simulations with the ENZO code we have …
suite of cosmological magneto-hydrodynamical simulations with the ENZO code we have …