Universe Colloquium: Particle Physics meets Astrophysics: Astrophysical counterparts of IceCube Neutrinos

by Elisa Resconi (TUM), Paolo Padovani (ESO)

Wednesday 29 Oct 2014, 16:30 → 17:30 Europe/Berlin

seminar room (Excellence Cluster Universe, Boltzmannstrasse 2, Garching)

IceCube has recently reported the discovery of high-energy neutrinos of astrophysical origin, opening up the PeV (10^15 eV) sky. These observations are challenging to interpret on the astronomical side and have triggered a fruitful intra-cluster collaboration across particle and astro-physics. Elisa (TUM) and Paolo (ESO) will first describe the IceCube experiment and then, by using positional and energetic diagnostics, discuss plausible astronomical counterparts to the neutrino events. These include extragalactic sources, namely BL Lacertae objects, a sub-class of blazars, and Galactic pulsar wind nebulae. They will conclude by addressing the implications of our results and possible ways forward. The Universe Colloquium is followed by a social gathering with wine and cheese.