Conveners
Surveys & Clusters/Lss
- Kenda Knowles (Rhodes University / South African Radio Astronomy Observatory)
The ViCTORIA (Virgo Cluster multi-Telescope Observations in Radio of Interacting galaxies and AGN) project includes three large radio surveys made with LOFAR LBA, LOFAR HBA and MeerKAT. The surveys' footprint extends over the virial radius of the Virgo cluster and covers the most relevant sub-clusters. This project will deliver: images at GHz frequencies of our closest rich galaxy cluster 60...
Surveys of the sky at multiple wavelengths provide a complete view into the large-scale properties of the Universe while also allowing studies of individual and also unique and heretofore unknown astrophysical objects and processes. The Australian SKA Pathfinder (ASKAP) is completing a series of shallow radio-frequency surveys as part of the Rapid ASKAP Continuum Survey”(RACS). RACS covers...
The Shapley Supercluster (mean redshift $z=0.048$) has one of the most extensive collections of galaxy clusters in the local Universe. At its heart lies the Shapley Supercluster Core (SSC), consisting of many clusters and groups at various evolutionary stages of merger activity. The SSC is thus a unique test bed to study mass assembly history and the complex kinematics of large-scale structure...
Superclusters are the perfect environments where to study galaxy clusters and groups at different stages of their dynamical activity. Particularly, the Shapley Supercluster is richest and most massive concentration of galaxy clusters known to date, and it presents a large variety of radio sources, from radio bridges to radio galaxies.
Here, I will present the newest high-fidelity images of...
Head-tail radio galaxies in clusters exhibit distinctive features where the head corresponds to an elliptical galaxy and two radio jets/tails sweep back from the head forming an extended structure behind the radio galaxy, that is moving through the intracluster medium (ICM). This morphology arises when the magnetized relativistic plasma outflowing from the host/parent galaxy is deflected and...
