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We compute the expected neutrino fluence from SGRB 170817A, associated withthe gravitational wave event GW 170817, directly based on Fermi observations intwo scenarios: structured jet and off-axis (observed) top-hat jet. While theexpected neutrino fluence for the structured jet case is very small, largeoff-axis angles imply high radiation densities in the jet, which can enhancethe neutrino production efficiency. In the most optimistic allowed scenario,the neutrino fluence can reach only $10^{-4}$ of the sensitivity of theneutrino telescopes. We furthermore demonstrate that the fact that gamma-rayscan escape limits the baryonic loading (energy in protons versus photons) andthe off-axis angle for the internal shock scenario. In particular, for abaryonic loading of ten, the off-axis angle is more strongly constrained by thebaryonic loading than by the time delay between the gravitational wave eventand the onset of the gamma-ray emission.

Expected neutrino fluence from short Gamma-Ray Burst 170817A and off-axis angle constraints