Astroparticle Colloquia

Multi-messenger astronomy with high-energy neutrinos

by Prof. Anna Franckowiak (DESY Zeuthen, Germany)




Abstract: High-energy neutrinos are solely produced in interactions of cosmic rays with ambient matter or photon fields and are therefore a smoking-gun signature for hadronic acceleration. 

A diffuse flux of cosmic neutrinos was first discovered by the cubic-kilometer-sized IceCube detector located at the South Pole in 2013. I will present the ongoing search for the origin of those neutrinos and discuss promising candidate sources including the gamma-ray blazar TXS 0506+056, the tidal disruption event AT2019dsg and the nearby Seyfert galaxy NGC 1068.

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