Seminari INAF

Mapping Galaxy Cluster physics via radio observations

by Dr Francesca Loi (Osservatorio astronomico di Cagliari)

→ Europe/Rome
Sala Jappelli (Osservatorio astronomico di Padova)

Sala Jappelli

Osservatorio astronomico di Padova
Description
Understanding the physics and evolution of galaxy clusters requires detailed radio continuum observations. Diffuse radio sources within clusters highlight the presence of a non-thermal component, comprised of relativistic particles and magnetic fields, intricately tied to the cluster's dynamical state. Polarized emission from sources both inside and beyond the cluster provides a valuable window into the properties of intracluster magnetic fields. Despite ongoing debates about their origin and evolution, the impact of these weak magnetic fields on cluster dynamics and the evolution of embedded galaxies is well-established. In this presentation, I will showcase recent findings from the MeerKAT Fornax Survey, which has achieved an unprecedented density of polarized sources—approximately 80 per square degree. This high-resolution Rotation Measure grid has not only deepened our understanding of Fornax cluster physics but also emphasized the transformative potential of future SKA mid-frequency surveys in unraveling the mysteries of galaxy clusters.
 
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Organised by

Alessandro Ignesti

Dr.