Angular velocity glitches of the Vela pulsar in a model with “centrifugal buoyancy” of vortices View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2007-04

AUTHORS

D. M. Sedrakian, M. V. Hayrapetyan, L. R. Sedrakian

ABSTRACT

The forces acting on the solid crust of a differentially rotating neutron star are examined when a nonuniform excess of chemical potential exists. The resultant of the external forces, a stress force, is expressed in terms of a centrifugal buoyancy force and the deformation of the star’s crust under the action of this force is calculated. It is shown that there is a region within the star where the resulting stresses lead to fracture of the crust when the difference in the angular velocities of the superfluid and normal components reaches a critical value. The “centrifugal buoyancy” mechanism for generating a glitch is used to estimate the parameters of glitches in the Vela pulsar. More... »

PAGES

144-156

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10511-007-0015-9

DOI

http://dx.doi.org/10.1007/s10511-007-0015-9

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1051544719


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