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Neutrino events from IceCube have recently been associated with multipleastrophysical sources. Interestingly, these likely detections represent threedistinct astrophysical source types: active galactic nuclei (AGN), blazars, andtidal disruption events (TDE). Here we compute the expected contributions ofAGNs, blazars and TDEs to the overall cosmic neutrino flux detected by IceCubebased on the associated events, IceCube's sensitivity, and the source types'astrophysical properties. We find that, despite being the most commonlyidentified sources, blazars cannot contribute more than 11% of the total flux(90% credible level), consistent with existing limits from stacked searches. Onthe other hand, we find that either AGNs or TDEs could contribute more than 50%of the total flux (90% credible level), although stacked searches further limitthe TDE contribution to $\lesssim 30%$. We also find that so-far unknown sourcetypes contribute at least 10% of the total cosmic flux with a probability of80%. We assemble a pie chart that shows the most likely fractional contributionof each source type to IceCube's total neutrino flux.

The IceCube Pie Chart: Relative Source Contributions to the Cosmic Neutrino Flux