Giant pulsar glitches and the inertia of neutron star crusts

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 n...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D 2016-07, Vol.94 (2), Article 023008
Main Authors: Delsate, T., Chamel, N., Gürlebeck, N., Fantina, A. F., Pearson, J. M., Ducoin, C.
Format: Article
Language:English
Subjects:
Crusts
Fluids
General Relativity and Quantum Cosmology
Glitches
Gravitation
Neutron stars
Permeating
Physics
Pulsars
Superfluidity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.94.023008