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arXiv · 1606.00016

Giant Pulsar Glitches and the Inertia of Neutron-Star Crusts

T. Delsate·N. Chamel·N. Gürlebeck·A. F. Fantina·J. M. Pearson·C. Ducoin
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Abstract

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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T. Delsate, N. Chamel, N. Gürlebeck, A. F. Fantina, J. M. Pearson, C. Ducoin. 2016-05-31. Giant Pulsar Glitches and the Inertia of Neutron-Star Crusts. https://doi.org/10.1103/physrevd.94.023008

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