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Astrophysics > High Energy Astrophysical Phenomena

arXiv:1606.00016 (astro-ph)
[Submitted on 31 May 2016]

Title:Giant Pulsar Glitches and the Inertia of Neutron-Star Crusts

Authors: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.
Comments: 11 pages, 6 figures, submitted to PRD
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); General Relativity and Quantum Cosmology (gr-qc)
Cite as: arXiv:1606.00016 [astro-ph.HE]
  (or arXiv:1606.00016v1 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.1606.00016
Journal reference: Phys. Rev. D 94, 023008 (2016)
Related DOI: https://doi.org/10.1103/PhysRevD.94.023008

Submission history

From: Térence Delsate [view email]
[v1] Tue, 31 May 2016 20:00:22 UTC (476 KB)
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