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Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 48: Neutrinoastronomie III

T 48.4: Talk

Wednesday, March 21, 2018, 17:15–17:30, Philo-HS1

Active Galactic Nuclei outflows as neutrino sources? — •Andrea Turcati1, Paolo Padovani2,3, and Elisa Resconi11Technische Universität München, Physik-Department, James-Franck-Str. 1, 85748 Garching — 2European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching bei München, Germany — 3Associated to INAF - Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monteporzio Catone, Italy

Over the last few years the IceCube Neutrino Telescope has reported the first observations of a high-energy astrophysical neutrino flux. Recently, these observations have been strengthened by the publication of a sample of 82 high-energy starting events, and 36 high-energy muon neutrino tracks. Many different scenarios for the astrophysical origin of the IceCube neutrinos have been explored, but a clear answer has yet to emerge. Among the possible neutrino sources, blazars are so far the most supported by the data. Nevertheless their maximum contribution to the astrophysical neutrino flux has been constrained to be subdominant. We consider here a new, possibly contributing class of neutrino emitters: Active Galactic Nuclei outflows. We present the results of quantitative tests, exploring the possible connection between IceCube neutrinos and Active Galactic Nuclei objects displaying outflows or outflow-like properties.

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