Newtonian Mechanics of Neutron Superfluid in Elastic Star Crust - Archive ouverte HAL
Article Dans Une Revue International Journal of Modern Physics D Année : 2006

Newtonian Mechanics of Neutron Superfluid in Elastic Star Crust

Résumé

To account for pulsar frequency glitches, it is necessary to use a neutron star crust model allowing not only for neutron superfluidity but also for elastic solidity. These features have been treated separately in previous treatments of crust matter, but are combined here in a unified treatment that is based on the use of a Lagrangian master functon, so that the system is ensured coherence by the relevant Noether identities. Besides the model obtained directly from the variation principle, the same master function can provide other conservative alternatives, allowing in particular for the effect of perfect vortex pinning. It is also shown how such models can be generalized to allow for dissipative effects, including that of imperfect pinning, meaning vortex drag or creep.
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Dates et versions

hal-03785054 , version 1 (23-09-2022)

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Brandon Carter, Elie Chachoua. Newtonian Mechanics of Neutron Superfluid in Elastic Star Crust. International Journal of Modern Physics D, 2006, 15, pp.1329-1358. ⟨10.1142/S0218271806009145⟩. ⟨hal-03785054⟩

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