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EP: Fachverband Extraterrestrische Physik

EP 9: Poster

EP 9.2: Poster

Mittwoch, 22. März 2023, 17:30–19:00, HSZ OG1

Extragalactic neutrino factories — •Sara Buson¹, Andrea Tramacere², Leonard Pfeiffer¹, Lenz Oswald¹, Gaetan De Fichet Clairfontaine¹, Alessandra Azzollini¹, Vardan Baghmanyan¹, Marco Ajello³, and Eleonora Barbano¹ — ¹Lehrstuhl 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 astrophysical sources responsible for the high-energy cosmic neutrinos has been a longstanding challenge. In a previous study, we report evidence for a spatial correlation between blazers from the 5th Roma-BZCat catalog and neutrino data collected by the IceCube Observatory in the Southern celestial hemisphere. The probability that such correlation is found by chance is about one in a million (2 x 10-6). In this conference contribution, we present an extension of the analysis to a complementary IceCube dataset, and put the findings into the context of the previous results.