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We present a comprehensive study on oscillation of high-energy neutrinos fromtwo different environments: blue supergiant progenitors that may harborlow-power gamma-ray burst (GRB) jets and neutron star merger ejecta that wouldbe associated with short gamma-ray bursts. We incorporate the radiationconstraint that gives a necessary condition for nonthermal neutrino production,and account for the time evolution of the jet, which allows us to treatneutrino oscillation in matter more accurately. For massive star progenitors,neutrino injection inside the star can lead to nonadiabatic oscillationpatterns in the 1 TeV - 10 TeV and is also visible in the flavor ratio. Forneutron star merger ejecta, we find a similar behavior in the 100 GeV - 10 TeVregion and the oscillation may result in a $\nu_e$ excess around 1 TeV. Thesefeatures, which enable us to probe the progenitors of long and short GRBs,could be seen by future neutrino detectors with precise flavor ratiomeasurements. We also discuss potential contributions to the diffuse neutrinoflux measured by IceCube, and find parameter sets allowing choked low-power GRBjets to account for the neutrino flux in the 10 TeV - 100 TeV range withoutviolating the existing constraints.

Oscillation of high-energy neutrinos from choked jets in stellar and merger ejecta