Speaker
Description
Magnetic fields are ubiquitous, permeating all large-scale cosmic structures — voids, filaments and galaxy clusters — and their strength decreases with thermal electron density. Understanding magnetic fields in the transition regions between clusters and filaments is crucial for unravelling the interplay of thermal and non-thermal processes and the mechanisms that amplify weak seed fields. While high-frequency observations probe μG-level fields in dense cluster cores, low-frequency instruments such as LOFAR excel at revealing much fainter fields in cluster outskirts, inter-cluster bridges and the cosmic web. In this talk, I will review the latest results obtained with LOFAR in this context, with a focus on supercluster environments, and discuss the advances anticipated with the advent of LOFAR2.0. Finally, I will highlight synergies with other polarisation surveys —most notably the Polarisation Sky Survey of the Universe’s Magnetism (POSSUM)— and outline how these efforts will set the stage for transformative science with the SKA.
