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arxiv: 1606.00016 · v1 · pith:LA3ABHUEnew · submitted 2016-05-31 · 🌌 astro-ph.HE · gr-qc

Giant Pulsar Glitches and the Inertia of Neutron-Star Crusts

T. Delsate , N. Chamel , N. G\"urlebeck , A. F. Fantina , J. M. Pearson , C. Ducoin This is my paper
classification 🌌 astro-ph.HE gr-qc
keywords giantglitchespulsarbeencrustdense-matterinertianeutron
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Giant pulsar frequency glitches as detected in the emblematic Vela pulsar have long been thought to be the manifestation of a neutron superfluid permeating the inner crust of a neutron star. However, this superfluid has been recently found to be entrained by the crust, and as a consequence it does not carry enough angular momentum to explain giant glitches. The extent to which pulsar-timing observations can be reconciled with the standard vortex-mediated glitch theory is studied considering the current uncertainties on dense-matter properties. To this end, the crustal moment of inertia of glitching pulsars is calculated employing a series of different unified dense-matter equations of state.

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    Bayesian NS EoS study using full nuclear posterior distributions and consistent crust modeling finds increased surface thickness and crustal moment of inertia relative to prior work.