The prospects for X-ray polarimetry and its potential use for understanding neutron stars

TL;DR

This paper reviews the current capabilities and future prospects of X-ray polarimetry for neutron stars, emphasizing how polarization measurements can reveal details of emission mechanisms and discussing instrumentation advancements.

Contribution

It provides a comprehensive overview of the state of X-ray polarimetry for neutron stars and discusses future directions and instrumentation developments.

Findings

Precision polarization measurements can elucidate emission mechanisms.

Current instrumentation has potential but requires advancements.

Future X-ray polarimetry can significantly enhance neutron star studies.

Abstract

We review the state of the art for measuring the X-ray polarization of neutron stars. We discuss how valuable precision measurements of the degree and position angle of polarization as a function of energy and, where relevant, of pulse phase, would provide deeper insight into the details of the emission mechanisms. We then review the current state of instrumentation and its potential for obtaining relevant data. Finally, we conclude our discussion with some opinions as to future directions.