A Model of High Energy Activity of Millisecond Pulsars in Globular Clusters

TL;DR

This paper presents 3D simulations of millisecond pulsars in globular clusters, revealing how their electric field structures and electron spectra depend on inclination, impacting models of high-energy radiation.

Contribution

It introduces a detailed 3D numerical model of millisecond pulsars within the pair starved polar cap framework, highlighting the influence of inclination on electric fields and electron spectra.

Findings

Electric field structure varies significantly with pulsar inclination.

Electron spectra become bimodal as inclination increases.

Results impact high-energy radiation modeling in globular clusters.

Abstract

Resluts of 3D numerical simulations in the framework of pair starved polar cap model (PSPC) for millisecond pulsars are presented. In the investigated PSPC model electric field structure highly depends on the pulsar inclination which is clearly visible in the computed spectra of electrons escaping pulsar magnetosphere which become bimodal with the increasing inclination. This is an important result for modelling very high energy radiation from globular clusters where currently the standard power law or monoenergetic electron distributions are used.