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EP: Fachverband Extraterrestrische Physik
EP 9: Poster
EP 9.2: Poster
Wednesday, March 22, 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.