High energy neutrino flavor ratios, neutrino mixing angles, and astrophysical diagnostics

Forthcoming neutrino telescopes (NTs) will be sensitive to the flavor content of high energy neutrino fluxes. We have shown that, when accounting for current experimental ranges for neutrino mixing parameters, astrophysical sources may present a more rich phenomenology than usually thought. In particular, one might access model-independent information on neutrino mixing parameters at km3 NTs, like the octant of θ23. Ongoing and planned laboratory neutrino experiments will help us to shed light on the properties of cosmic accelerators.