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Giant Pulsar Glitches and the Inertia of Neutron-Star Crusts

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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Contributor : Michel Lion Connect in order to contact the contributor
Submitted on : Wednesday, July 20, 2016 - 8:51:00 AM
Last modification on : Friday, September 10, 2021 - 1:50:15 PM

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T. Delsate, N. Chamel, N. Gürlebeck, A.F. Fantina, J.M. Pearson, et al.. Giant Pulsar Glitches and the Inertia of Neutron-Star Crusts. Physical Review D, American Physical Society, 2016, 94 (2), pp.023008. ⟨10.1103/PhysRevD.94.023008⟩. ⟨in2p3-01346942⟩



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