EPJ Web Conf.
Volume 210, 2019Ultra High Energy Cosmic Rays 2018 (UHECR 2018)
|Number of page(s)||6|
|Published online||17 May 2019|
High-Energy Neutrinos from Blazar Flares and Implications of TXS 0506+056
European Southern Observatory, Karl-Schwarzschild-Str. 2, Garching bei München D-85748, Germany
2 Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA
3 Department of Astronomy & Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA
4 Center for Particle and Gravitational Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA
5 Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan
6 Department of Astrophysical Sciences, Princeton University, New Jersey 08544, USA
Published online: 17 May 2019
Motivated by the observation of a > 290 TeV muon neutrino by IceCube, coincident with a ~6 month-long γ-ray flare of the blazar TXS 0506+056, and an archival search which revealed 13 ± 5 further, lower-energy neutrinos in the direction of the source in 2014-2015 we discuss the likely contribution of blazars to the diffuse high-energy neutrino intensity, the implications for neutrino emission from TXS 0506+056 based on multi-wavelength observations of the source, and a multi-zone model that allows for sufficient neutrino emission so as to reconcile the multi-wavelength cascade constraints with the neutrino emission seen by IceCube in the direction of TXS 0506+056.
© The Authors, published by EDP Sciences, 2019
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