Prospects for measuring the moment of inertia of pulsar PSR J0737-3039A

TL;DR

This paper evaluates the feasibility of measuring the pulsar PSR J0737-3039A's moment of inertia with 10% accuracy using gravitomagnetic precession, concluding that current measurement limitations hinder this goal.

Contribution

It analyzes the potential and challenges of measuring the pulsar's moment of inertia through gravitomagnetic effects, highlighting current observational constraints.

Findings

Measuring the moment of inertia at 10% accuracy is unlikely with current methods.

Radio timing limitations restrict parameter measurement precision.

Current observational capabilities are insufficient for this measurement.

Abstract

Here we consider the possibility of measuring at 10% or better the moment of inertia I of the J0737-3039A via the gravitomagnetic spin-orbit periastron precession. It turns out that the prospect of measuring the moment of inertia of PSR J0737-3039A at 10% accuracy or better seems unlikely given the limitations to the precision with which the system's basic binary and post-Keplerian parameters can be measured via radio timing.