Coffee talks
Friday 18/10/2024 @ 11:30, Sala riunioni quarto piano e on line (meet.google.com/sue-bwvk-axf)
Gourab Giri (University of Pretoria, South Africa), "Bridging Simulations & Observations: Insights into (Hazardous) Large-Scale Environments and the distinct Radio Galaxy Origins"
In a limited fraction of extragalactic jets, a captivating phenomenon manifests as they deviate from their straight-line trajectories, forming mirror-symmetric (TAILED) and inversion-symmetric (WINGED) structures. The complexity deepens with the discovery of resembling galactic microquasars. Extended jets that follow a straight-line trajectory, in certain circumstances, grow to giant scales (GRG), reaching the edge of the large-scale structures they inhabit. The origins of these distinct geometries remain intensely debated, especially with present-day observations challenging prior predictions. In this context, my work focuses on modeling these sources using recently developed tools to unravel their topological origins. It examines the intricate interconnection of jet morphology with their ambient environment alongside complex processes within the central AGN. Emphasizing microscale processes, this investigation explores the impact of particle cooling and reacceleration on spectral and polarization maps, elucidating perplexing properties, e.g., anomalous spectral behavior in winged sources. This presentation thereby outlines novel scientific inquiries, and provides likely future directions for such jetted sources.