Energy accumulation mechanism in pulsar magnetospheric plasma eigen-waves and formation of Giant Radio Pulses

TL;DR

This paper proposes a mechanism where energy stored in pulsar magnetospheric plasma waves is released along magnetic field lines, potentially explaining the origin of Giant Radio Pulses observed in pulsars.

Contribution

It introduces a new energy accumulation and release process involving eigen-waves in pulsar plasma, linking wave propagation to giant radio pulse formation.

Findings

Waves propagate across magnetic field lines and accumulate energy in the magnetosphere.

Non-linear plasma processes release the accumulated energy along magnetic field lines.

The model explains the origin of Giant Radio Pulses as waves emitted in the radio domain.

Abstract

In the present work we consider energy accumulation mechanism in relativistic electron-positron plasma in the magnetosphere of pulsars. Waves propagating almost across the magnetic field lines are generated that accumulate the energy of plasma particles, as the waves stay significantly long in the resonance region. The accumulated energy is transmitted in the parallel direction of the magnetic field lines as soon as the non-linear plasma processes start to operate. It is suggested that exit of the accumulated energy via waves propagating along the magnetic field lines matching the viewing angle of the observer produces giant pulses. It is shown that these waves come in the radio domain, explaining the Giant Radio Pulse phenomenon.