IceCube Neutrino Observatory Management & Operations PY3 Annual Report The IceCube Laboratory with three IceCube Upgrade generators (left), January 2024.
First, unlike the case for all
wavebands of light, the contribution to the cosmic neutrino flux from our own Galaxy is only at the 10% level [2].
Second, the flux of gamma rays from the decay of the neutral pions accompanying the charged
pions that decay into the cosmic neutrinos exceeds the total extragalactic flux observed by gamma-ray detectors.
At the location of NGC 1068, we observe an excess of 79+22-20 neutrinos
with TeV energies [3].
Additionally, we find evidence for the active g...
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