# Nonlinear reflection from the surface of neutron stars and puzzles of radio emission from the pulsar in the Crab nebula

## TL;DR

This paper proposes that the high-frequency radio emissions from the Crab pulsar may result from nonlinear reflection instabilities on the neutron star surface, involving stimulated scattering by surface waves, a phenomenon yet to be observed.

## Contribution

It introduces a novel hypothesis linking nonlinear surface wave scattering to pulsar radio emission, providing a potential explanation for previously unexplained high-frequency components.

## Key findings

- Suggests nonlinear reflection causes high-frequency pulsar emissions
- Proposes stimulated scattering by surface waves as a key mechanism
- Highlights the lack of observational evidence for the predicted instability

## Abstract

Having no any explanations the radiation of high-frequency components of the pulsar in the Crab Nebula can be a manifestation of instability in the nonlinear reflection from the neutron star surface. Reflected radiation it is the radiation of relativistic positrons flying from the magnetosphere to the star and accelerated by the electric field of the polar gap. The discussed instability it is a stimulated scattering by surface waves, predicted more than forty years ago and still nowhere and by no one had been observed.

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Source: https://tomesphere.com/paper/1701.02304