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Multi-messenger interpretation of the neutrinos from TXS 0506+056

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arxiv 1909.06289 v1 pith:Q3VQLHFF submitted 2019-09-13 astro-ph.HE

Walter Winter , Shan Gao , Xavier Rodrigues , Anatoli Fedynitch , Andrea Palladino , Martin Pohl This is my paper · ORCID
classification astro-ph.HE
keywords neutrinoobservedblazardatadescribeflareflaresinterpretation
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We discuss possible interpretations of the neutrinos observed from the AGN blazar TXS 0506+056 in the multi-messenger and multi-wavelength context, including both the 2014-15 and 2017 neutrino flares. While the neutrino observed in September 2017 has to describe contemporary data in e.g. the X-ray and VHE gamma-ray ranges, data at the 2014-15 excess are much sparser. We demonstrate that in both cases the simplest possible one-zone AGN blazar models face challenges. While the 2017 flare can be well interpreted by considering more sophisticated source geometries, the 2014-15 flare is much harder to describe with conventional models. One challenge is the energy injected into the electromagnetic cascade coming together with the neutrino production, which cannot be reconciled with the 13 observed neutrino events. We also speculate if a common interpretation of both flares is feasible.

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  1. An NGC 1068-Informed Understanding of Neutrino Emission of the Active Galactic Nucleus TXS 0506+056

    astro-ph.HE 2024-11 conditional novelty 6.0 of 10

    TXS 0506+056's IceCube neutrinos are consistent with production in an X-ray-obscured core within 10-100 Schwarzschild radii, like NGC 1068, but only if the proton luminosity is near Eddington during flares.

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