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Paper: |
Nucleon Superfluidity and its Influence on Damping of Neutron Star Oscillations |
Volume: |
466, Electromagnetic Radiation from Pulsars and Magnetars |
Page: |
223 |
Authors: |
Kantor, E. M.; Gusakov, M. E.; Chugunov, A. I.; Gualtieri, L. |
Abstract: |
We analyse viscous damping of nonradial oscillations
of relativistic superfluid neutron stars.
To this aim the approximate method,
first suggested in Gusakov & Kantor (2011),
and based on the decoupling
of superfluid and normal oscillation modes,
is extended to account for dissipation.
Frequency spectrum and damping times are calculated
for oscillation modes with multipolarities l = 0, 1, 2, and 3.
All calculations are made self-consistently
within the finite temperature superfluid hydrodynamics.
For the first time it is shown that viscous damping of
normal modes can be much more effective in certain stages
of neutron-star thermal evolution,
than it is commonly assumed. |
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