Lecture
This lecture discusses the detection of a PeV neutrino from a Tidal Disruption Event (TDE) and its association with AT2019dsg, a TDE with a relativistic jet. The lecture covers the multi-wavelength information captured, including UV/optical and X-ray emissions, radio synchrotron emissions, and neutrino production mechanisms. Ambiguities in the analysis and the physical mechanisms behind the event are also explored.