Relaxation of the Vela Pulsar's Angular Velocity Following its Jumps

Details Relaxation of the Vela Pulsar's Angular Velocity Following its Jumps Relaxation of the Vela Pulsar's Angular Velocity Following its Jumps

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ap.....40...39s&link_type=abstract

Astrophysics, Volume 40, Issue 1, pp.39-45

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

The dynamics of the vortex lattice in the inner crust of a neutron star is considered. A general equation of motion is obtained and solved under the assumption that there are regions of pinned and of free vortices. By comparing these solutions with observational data for the Vela pulsar, the relative moments of inertia of regions of relaxation with the corresponding characteristic times are calculated for two model stars with different equations of state. It is shown that the theory can be reconciled with observations of the relaxation of pulsar angular velocity only for model stars with extremely stiff equations of state.

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