Neutrino spectra and flavor composition on the Hillas plot

We describe energy-dependent neutrino fluxes and flavor ratios of neutrinos produced in cosmic accelerators over 20×24 orders of magnitude in R and B, which are the parameters of the Hillas plot. For this approach, we use a self-consistent model where neutrinos are produced by photohadronic interactions between protons and synchrotron photons from co-accelerated electrons. We especially emphasize magnetic field and flavor effects in the neutrino production chains, including the most relevant neutrino production modes. We also illustrate how the energy-dependent flavor composition can be used to measure physics beyond the Standard Model, and we demonstrate what regions of the Hillas plane can be best probed by existing data, such as IC-40 or Auger.