What we'd be looking at as candidates are things that produce many high energy neutrinos, perhaps directed at us, or perhaps even more, just going everywhere. Such things might be relatively nearby GRBs, or perhaps active galactic nuclei (such as M87 or Cen A), or perhaps micro-quasars, or nearby supernovae.
Originally Posted by Gsquare
The fact is that most models say that we should not quite yet be detecting any of these, unless we got very lucky with when a relatively close or intense event occurred.
Forming opinions as we speak