# PeV neutrinos from local magnetars

## TL;DR

This paper models PeV neutrino fluxes from magnetar polar caps, considering photon splitting effects, to evaluate their potential contribution to IceCube's observed neutrino events.

## Contribution

It introduces the impact of photon splitting on radiative backgrounds in magnetars, refining predictions of neutrino fluxes at PeV energies.

## Key findings

- Photon splitting enhances neutrino flux predictions.
- Magnetars are unlikely to account for significant IceCube neutrino excess.
- Neutrino flux from magnetars remains low for nearby sources.

## Abstract

The paper estimates the flux of PeV neutrinos from magnetar polar caps, assuming that ions/protons are injected, and accelerated in these regions and interact with the radiative background. The present study takes into account the effect of the photon splitting mechanisms that should modify the radiative background, and enhance the neutrino flux at PeV energies, with a view to explain the PeV neutrino events detected in IceCube. The results indicate that in near future, a possibility of any significant excess of neutrino events from a magnetar in Milky Way is extremely low.