Speaker
Foteini Oikonomou
Description
The main observables in the study of ultra-high energy cosmic rays are their arrival direction distribution, diffuse spectrum and composition. I will summarise the insights that arise from the study of the spectrum and composition, and show that these are seemingly in contradiction with the insights we obtain from the latest skymap of ultra-high energy arrival directions. I will then discuss the possible role of active galactic nuclei and tidal-disruption events as sources of high-energy neutrinos, and outline a strategy towards predictive models of neutrino production in these environments.
