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SMuK 2023 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 13: Astrophysics: Galaxies II

EP 13.4: Vortrag

Donnerstag, 23. März 2023, 18:30–18:45, ZEU/0160

Beginning a journey across the Universe: the discovery of extragalactic neutrino factories — •Lenz Oswald1, Sara Buson1, Andrea Tramacere2, Leonard Pfeiffer1, Alessandra Azzollini1, and Marco Ajello31Lehrstuhl für Astronomie, Universität Würzburg, Emil-Fischer-Straße 31, 97074, Würzburg — 2Department of Astronomy, University of Geneva, Ch. d'Ecogia 16, Versoix, 1290, Switzerland — 3Department of Physics and Astronomy, Clemson University, Kinard Lab of Physics, Clemson, SC 29634-0978, USA

Identifying the sources of extragalactic neutrinos is one of the foremost challenges in the astrophysics field. Amongst the most promising candidate sources that can be associated there are blazars, active galactic nuclei hosting a relativistic jet pointed towards us. In this work, we provide evidence for an association between high-energy (>100TeV) IceCube neutrinos and a well-defined, sample of blazars (5th Roma BZCat catalog) in the Southern celestial Hemisphere. This results in a probability to find such correlation by chance that is as low as 2 x 10-6.

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