On the reconstruction of a magnetosphere of pulsars nearby the light cylinder surface

TL;DR

This paper proposes a new mechanism for reconstructing pulsar magnetospheres by analyzing plasma flow kinematics and deriving an instability growth rate, explaining how rotational energy is transferred within the magnetosphere.

Contribution

It introduces a novel parametric mechanism based on curvature drift instability to explain pulsar magnetosphere reconstruction and energy transfer.

Findings

Derived the increment of curvature drift instability for 1s pulsars

Demonstrated the efficiency of the new parametric mechanism

Explained rotation energy pumping in pulsar magnetospheres

Abstract

A mechanism of generation of a toroidal component of large scale magnetic field, leading to the reconstruction of the pulsar magnetospheres is presented. In order to understand twisting of magnetic field lines, we investigate kinematics of a plasma stream rotating in the pulsar magnetosphere. Studying an exact set of equations describing the behavior of relativistic plasma flows, the increment of the curvature drift instability is derived, and estimated for $1s$ pulsars. It is shown that a new parametric mechanism is very efficient and can explain rotation energy pumping in the pulsar magnetospheres.