Corpus ID: 118377794

Galaxy cluster magnetic fields from radio polarized emission

@article{Bonafede2010GalaxyCM,
  title={Galaxy cluster magnetic fields from radio polarized emission},
  author={Annalisa Bonafede and L. Feretti and M Murgia and F Govoni and Gabriele Giovannini and Valentina Vacca},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  year={2010}
}
The presence of magnetic fields in the intra-cluster medium of galaxy clusters is now well estabilished. It is directly revealed by the presence of cluster-wide radio sources: radio halos and radio relics. In the last years increasing attention has been devoted to the intra cluster magnetic field through the study of polarized radio emission of radio galaxies, radio halos and radio relics. Recent radio observations have revealed important features of the intra-cluster magnetic field, allowing… Expand

Figures from this paper

Relativistic plasma and ICM/radio source interaction
Abstract The first detection of a diffuse radio source in a cluster of galaxies, dates back to the 1959 (Coma Cluster, Large et al. 1959). Since then, synchrotron radiating radio sources have beenExpand
A new probe of axion-like particles: CMB polarization distortions due to cluster magnetic fields
We propose using the upcoming Cosmic Microwave Background (CMB) ground based experiments to detect the signal of ALPs (Axion like particles) interacting with magnetic fields in galaxy clusters. TheExpand
On the cosmological propagation of high energy particles in magnetic fields
In the present work the connection between high energy particles and cosmic magnetic fields is explored. Particularly, the focus lies on the propagation of ultra-high energy cosmic rays (UHECRs) andExpand
Heating and enriching the intracluster medium
We present numerical simulations of galaxy clusters with stochastic heating from active galactic nuclei (AGN) that are able to reproduce the observed entropy and temperature profiles of non-cool-coreExpand
Magnetic power spectra from Faraday rotation maps REALMAF and its use on Hydra A
We develop a novel maximum-a-posteriori method to measure magnetic power spectra from Faraday rotation data and implement it in the REALMAF code. A sophisticated model for the magneticExpand
Constraints on primordial magnetic fields from magnetically-induced perturbations: current status and future perspectives with LiteBIRD and future ground based experiments
We present the constraints on the amplitude of magnetic fields generated prior to the recombination using CMB temperature and polarization anisotropy data from Planck 2018 release, alone and inExpand
UNGRAVITY AND APPLICATIONS
A model based on the ungravity proposal is presented. Some applications explaining dark energy and dark matter are discussed.
Downstream Depolarization in the Sausage Relic: A 1–4 GHz Very Large Array Study
Radio relics are elongated sources related to shocks driven by galaxy cluster merger events. Although these objects are highly polarized at GHz frequencies (≳20%), high-resolution studies of theirExpand

References

SHOWING 1-3 OF 3 REFERENCES
Tomography of galaxy clusters through low-frequency radio polarimetry
Aims. The goal of this work is to understand the very complex linear polarization of the Galactic foreground in the direction of the cluster A2255. Methods. We use RM-synthesis to unravel theExpand
Turbulent Motions and Shocks Waves in Galaxy Clusters simulated with AMR
We have implemented an Adaptive Mesh Refinement criterion explicitly designed to increase spatial resolution around discontinuities in the velocity field in ENZO cosmological simulations. With thisExpand
w-frequency radio polarimetry
  • PhD Thesis Rees, M. J. 2006, Astronomische Nachrichten,
  • 2002