12-23 July 2021
Online
Europe/Berlin timezone

High-Energy Neutrinos from NGC 1068

12 Jul 2021, 18:00
1h 30m
06

06

Talk MM | Multi-Messenger Discussion

Speaker

Luis Anchordoqui (Lehman College, City University of New York)

Description

IceCube has observed an excess of neutrino events over expectations from the isotropic background from the direction of NGC 1068. The excess is inconsistent with background expectations at the level of 2.9σ after accounting for statitsical trials. Even though the excess is not statistical significant yet, it is interesting to entertain the possibility that it corresponds to a real signal. Assuming a single power-law spectrum, the IceCube Collaboration has reported a best-fit flux ∼ 3 × 10^{−11} (E/TeV)^{−3.2} (TeV cm^2 s)^{−1} , where E is the neutrino energy. Taking account of new physics and astronomy developments we give a revised high-energy neutrino flux for the Stecker-Done-Salamon-Sommers AGN core model and show that it can accommodate IceCube observations.

Keywords

AGN as neutrino sources

Subcategory Theoretical Results

Primary authors

Luis Anchordoqui (Lehman College, City University of New York) John Krizmanic (4NASA/Goddard Space Flight Center) Floyd Stecker (NASA/Goddard Space Flight Center)

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