Predicting the moment of inertia of pulsar J0737-3039A from Bayesian modeling of the nuclear equation of state

Yeunhwan Lim, Jeremy W. Holt, Robert J. Stahulak

Research output: Contribution to journalArticlepeer-review


We investigate neutron star moments of inertia from Bayesian posterior probability distributions of the nuclear equation of state that incorporate information from microscopic many-body theory and empirical data of finite nuclei. We focus on PSR J0737-3039A and predict that for this 1.338M neutron star the moment of inertia lies in the range 1.04×1045gcm2<I<1.51×1045gcm2 at the 95% credibility level, while the most probable value for the moment of inertia is Ĩ=1.36×1045gcm2. Assuming a measurement of the PSR J0737-3039A moment of inertia to 10% precision, we study the implications for neutron star radii and tidal deformabilities. We also determine the crustal component of the moment of inertia and find that for typical neutron star masses 1.3M <M<1.5M the crust contributes 1-6% of the total moment of inertia, below what is needed to explain large pulsar glitches in the scenario of strong neutron entrainment.

Original languageEnglish
Article number035802
JournalPhysical Review C
Issue number3
Publication statusPublished - 2019 Sept 16

Bibliographical note

Funding Information:
This work was supported by the National Science Foundation under Grant No. PHY1652199. Portions of this research were conducted with the advanced computing resources provided by Texas A&M High Performance Research Computing.

Publisher Copyright:
© 2019 American Physical Society.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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