30/06/2026 14:30:00
Colloquio: AGN as Cosmic Neutrino Sources: A Multi-Messenger Perspective
GrassanoColloquio di Sezione INFN:
Speaker:
Prof.ssa Sara Buson (DESY, Univ. of Wurzburg)
Titolo:
AGN as Cosmic Neutrino Sources: A Multi-Messenger Perspective
Abstract:
Cosmic rays demonstrate that our Universe hosts astrophysical objects capable of accelerating particles to extreme energies. High-energy photons and neutrinos provide complementary information on these environments and may help us identify the origin of cosmic rays. Among the most promising candidate sources of astrophysical neutrinos are active galactic nuclei (AGN), among which blazars, whose relativistic jets are closely aligned with our line of sight. Despite significant observational and theoretical efforts over the past decade, there is still no coherent picture that can explain the full range of multi-messenger observations. This talk reviews the current status of one of the central challenges in high-energy astrophysics, i.e. the identification of the sources of extragalactic neutrinos, and discusses recent developments, open questions, and future prospects in the era of multi-messenger astronomy.