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If you want to see the actual diagram, rather than the composite overlaying it with a visible light image of the milky way, here is figure 4 from the paper: https://res.cloudinary.com/icecube/images/q_auto/v1671570509... (From the media gallery here: https://icecube.wisc.edu/gallery/high-energy-neutrinos-from-... )

As you'd expect, the resolution from a 86x60 neutrino detector array is not great.

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Right. That doesn't seem to line up super well with the galactic disc. Even those diagrams look like they've had an awful lot of smoothing.

> "In the Milky Way Galaxy, cosmic rays (high-energy protons and heavier nuclei) interact with galactic gas and dust to produce both gamma rays and neutrinos.", from the article

The detected neutrinos were not necessarily produced in the vicinity of the source of the cosmic rays as I understand it. Imagine it like a bank of fog lighting up in the night because a car with headlights is moving towards it.

Yes; however, because of the extreme kinetic energy and momentum of the cosmic ray inputs to these collision events, the output neutrinos will be emitted in a tightly focused cone parallel to the path of the original ray. You can be fairly confident that the original source is close to the line-of-sight.

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